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Ring and pinion fitment question.

Posted: Tue Sep 15, 2009 8:11 pm
by nissanfanatic
http://ka-t.org/forums/viewtopic.php?t=44306&highlight=

Does anyone know if this would be a swap into the stock rear end? I already have a Kaaz, so I just want a taller gear.

Posted: Tue Sep 15, 2009 8:47 pm
by ppctx
I dont know, your a mod, but the guy sells a lot more than he contributes. A Q45 rear end will give you much tallness

Posted: Wed Sep 16, 2009 5:39 am
by turbo2nr
iirc as long as its a r200v pumkin you should have no problems,

the q45 pumkin and the 240sx pumkin is the same except for the diff covers. the internals should be the same too.

since your diff is made for a 240sx i dont see why the ring and pinion from a q45 wouldnt work..

Posted: Wed Sep 16, 2009 6:14 am
by nissanfanatic
ppctx wrote:... your a mod...
And you're supposedly an engineer, so STFU. I have seen jack **** of useful engineering information out of you. I can't see how they let people like you have a degree.

Better yet, just stay out of my threads. Nothing I ask can be answered by you. I already have one good friend that you have pissed off in the past with your pissy little attitude.

Posted: Wed Sep 16, 2009 6:26 am
by Alonso
^ LOL.

People swap 4.09 gears into the q45 rear end, I don't see why you couldn't swap that R&P into your diff.

Posted: Wed Sep 16, 2009 6:48 am
by nissanfanatic
Alonso wrote:^ LOL.

People swap 4.09 gears into the q45 rear end, I don't see why you couldn't swap that R&P into your diff.
I had always thought the Q45 diffs had a longer snout for some reason...

I'll probably just give it a shot. I'd really like taller gearing.

Posted: Wed Sep 16, 2009 8:33 am
by ppctx
nissanfanatic wrote:
ppctx wrote:... your a mod...
And you're supposedly an engineer, so STFU. I have seen jack **** of useful engineering information out of you. I can't see how they let people like you have a degree.

Better yet, just stay out of my threads. Nothing I ask can be answered by you. I already have one good friend that you have pissed off in the past with your pissy little attitude.
That was impolite and uncalled for. Are you upset with me because I apparently hurt your good friends feelings because telling you what I think about the seller and that a q45 diff is a good option for you does not account your outburst.

They don’t “give” engineering degrees from ABET accredited colleges away. You go to school, spend a lot of time studding very hard, then after doing that ~5yrs for a full time student, demonstrating your ability and comprehension of the subject matter and completing the ~135hr curriculum, they allow you to have the diploma you have earned. Go get a degree, you’ll understand how silly your attempt at insult was.

What kind of engineering information were you hoping to hear from me? Hopefully your interested in all things related to traffic as that has been my main study and profession for a good number of years but in school I was good in structures and physics.. hated anything chemistry.

But I don’t think my level of education or lack of displaying it on the forum is what’s got you butt hurt, so what’s your problem?

Posted: Wed Sep 16, 2009 8:55 am
by nissanfanatic
It was moreso the "you're a mod" comment. As if I know everything because I am a moderator.

Please, tell me how hard your school was, and I will share mine. Then we can compare cars. And after that, we can compile work hours. 135hrs of curriculum... I think I have spent more time than that in front of a .50 cal on watch. I REGRET not going to college for the easy life, so I'll go when I'm out. School is the easy life. Even if it is hard, you get to go home at night.

Posted: Wed Sep 16, 2009 9:00 am
by supakat
the end yoke is longer than stock...you can change the r200 yoke with the r230...issue is the output flanges on the diff...they are a six bolt circle...

i got a free diff from someone who thought it was a r200v...i changed over the yoke and back plate then mounted it...this is when i found out the output flanges didnt work...i tried changing the output flanges with the r200 but the diameter of the spline is smaller than the r230...and i dont believe q45 axles will work on the car due to the length of the axle...this is what i remember when looking at axles in the junkyard...also the spline to the hub may be bigger...

i have 92 j30 r200v diff with j30 axles...the axles are beefier than stock 240...i was happy when i saw this because i at least feel better that i might not snap an axle as easy...

Posted: Wed Sep 16, 2009 9:21 am
by ppctx
Oh, I see. No, I was not implying that you should know anything and that part of the post really wasn't needed. I think I was jokingly implying that the seller could be asked to be a forum sponsor since I usually see his name in the For Sale section vs other sections. I searched his name and he doesn’t sell as much as I thought.

HA! 135hr is really 135x16weeks per semester so 2160hrs of actual hours spent in class plus "they" say you'll spend 3 hours outside class studding for every hour spend in class. 2160x3 so 6480hrs is the assumed cost in time before they'll hand over the piece of paper with your name on it.

No hard feelings on my end.

Posted: Wed Sep 16, 2009 9:24 am
by ppctx
supakat wrote:the end yoke is longer than stock...you can change the r200 yoke with the r230...issue is the output flanges on the diff...they are a six bolt circle...

i got a free diff from someone who thought it was a r200v...i changed over the yoke and back plate then mounted it...this is when i found out the output flanges didnt work...i tried changing the output flanges with the r200 but the diameter of the spline is smaller than the r230...and i dont believe q45 axles will work on the car due to the length of the axle...this is what i remember when looking at axles in the junkyard...also the spline to the hub may be bigger...

i have 92 j30 r200v diff with j30 axles...the axles are beefier than stock 240...i was happy when i saw this because i at least feel better that i might not snap an axle as easy...
That was what I ran into when looking into this and finaly said F it and just installed a 6bolt j30. I think the q45 requires the drivers side z32 shaft along with the driver side q45 shaft and the input is still ~.75" longer than stock.

Posted: Wed Sep 16, 2009 9:59 am
by Alonso
nissanfanatic wrote:
Alonso wrote:^ LOL.

People swap 4.09 gears into the q45 rear end, I don't see why you couldn't swap that R&P into your diff.
I had always thought the Q45 diffs had a longer snout for some reason...

I'll probably just give it a shot. I'd really like taller gearing.
Nope the housing is longer because of the ABS sensor. I'm running a differential flange off my old S13 open diff on my q45 pumpkin. The length comes from the flange itself, not the pinion.

I was able to reuse my stock driveshaft after swapping the flange. Only had to grind down the housing a bit to clear the nuts/bolts. I did the whole differential/axle/hubs swap of course...

Posted: Wed Sep 16, 2009 10:21 am
by nissanfanatic
ppctx wrote:Oh, I see. No, I was not implying that you should know anything and that part of the post really wasn't needed. I think I was jokingly implying that the seller could be asked to be a forum sponsor since I usually see his name in the For Sale section vs other sections. I searched his name and he doesn’t sell as much as I thought.

HA! 135hr is really 135x16weeks per semester so 2160hrs of actual hours spent in class plus "they" say you'll spend 3 hours outside class studding for every hour spend in class. 2160x3 so 6480hrs is the assumed cost in time before they'll hand over the piece of paper with your name on it.

No hard feelings on my end.
Gotcha. Sorry for being a dick. I'm naturally a little more defensive after being in the military, especially towards college students since that is all officers are.

Posted: Wed Sep 16, 2009 11:24 am
by emo_tactical9
nissanfanatic wrote:
ppctx wrote:... your a mod...
And you're supposedly an engineer, so STFU. I have seen jack **** of useful engineering information out of you. I can't see how they let people like you have a degree.

Better yet, just stay out of my threads. Nothing I ask can be answered by you. I already have one good friend that you have pissed off in the past with your pissy little attitude.
Damn Cory, way to flip the bi*ch switch. I think his comment was about that guy selling more than posting.
I think he's okay though. He had some good contributions in the past.

Posted: Wed Sep 16, 2009 11:35 am
by supakat
Alonso wrote:I'm running a differential flange off my old S13 open diff on my q45 pumpkin. The length comes from the flange itself, not the pinion.

I was able to reuse my stock driveshaft after swapping the flange. Only had to grind down the housing a bit to clear the nuts/bolts. I did the whole differential/axle/hubs swap of course...
This is what we said...only main issue is axles to hub...if you swapped out to q45 hubs, then the splines will be the same size and from your post we can imply that they are the same length...then your good to go...you could have custom axles made but too much money.....

thanks for the update...

Posted: Wed Sep 16, 2009 3:10 pm
by nissanfanatic
emo_tactical9 wrote:
nissanfanatic wrote:
ppctx wrote:... your a mod...
And you're supposedly an engineer, so STFU. I have seen jack **** of useful engineering information out of you. I can't see how they let people like you have a degree.

Better yet, just stay out of my threads. Nothing I ask can be answered by you. I already have one good friend that you have pissed off in the past with your pissy little attitude.
Damn Cory, way to flip the bi*ch switch. I think his comment was about that guy selling more than posting.
I think he's okay though. He had some good contributions in the past.
Yea, it is the internet.

Re: Ring and pinion fitment question.

Posted: Thu Sep 17, 2009 12:22 am
by crazys14
nissanfanatic wrote:http://ka-t.org/forums/viewtopic.php?t=44306&highlight=

Does anyone know if this would be a swap into the stock rear end? I already have a Kaaz, so I just want a taller gear.
yes it will swap into stock rear end and vice / versa i have a 3.96 r&p in my q45 diff right now

it will work but backlash is a bit of a pain but works with correct shims

Posted: Fri Sep 18, 2009 9:04 pm
by UNISA JECS
Yes it'll swap onto any diff for S13,S14, etc etc just not onto the newer style G35/350Z R200(V).

Posted: Fri Sep 18, 2009 9:43 pm
by UNISA JECS
I should add a little more info:

Couple things you should know:

Differential ring gear bolt sizes:

Part # 38102-12S00
S13 - 12mm thread 12mm shank from 07/88 - thru
S14 - 12mm thread 12mm shank from 02/94 – 12/96
J30 - 12mm thread 12mm shank from 01/92 - 12/96

Part # 38102-10V00
S14 - 13mm thread 13mm shank from 12/96 – up
Z32 - 13mm thread 13mm shank ALL
Z33 - 13mm thread 13mm shank ALL
Q45 - 13mm thread 13mm shank 90-96
J30 - 13mm thread 13mm shank 12-96

Part # 38102-RS500
S15 - 12mm thread 13mm shank HLSD

Now some people might wonder what the point of all this, well if you know what differential you have then you know what size ring gear bolt your differential uses, and if you know that then you know what ring and pinion combo's will work for you and or you buy the correct ring gear bolts for your special application,

Based on the application list above the only combo that will require enlarging of the diffrential bolt holes would be if your using a 12mm thread 12mm shank differential with a 13mm ring and pinion set. There is just no way around that.

Posted: Fri Sep 18, 2009 10:03 pm
by UNISA JECS
I actually decided to read this entire post.....lol..dont hate the playa....If you got any questions reguarding swapability of diff's just ask me I know alot but not everything but I bet I can answer most your questions.

Posted: Fri Sep 18, 2009 10:26 pm
by UNISA JECS
All the above R200(v)'s has the same lenght pinion's, like someone that knows his stuff mentioned it already, the different in lenght is subtracted for via the companion flange for the differentials that have teh ABS sensor on the snout.

Lets see we can go on about some more stuff.

The 90-96 Q45 companion flange needs to be swaped with a J30 companion flange in order to work on a S13, S14.

The 97-01 Q45 companion flange needs to be swaped with a stock S13 non-ABS companion flange (I dont recall were teh ABS sensor is on a S13 equiped with ABS so it may not matter as long as it isn;t on teh snout).

The 90-96 Q45 uses a 30 spline output flange thats uses 6x1 axles and you need a drivers side Q45 axle and a Z32 TT drivers side axle for this to work on your S-chassis.

BONUS INFO

The 97-01 Q45 uses 30 spline output flanges but uses 5x1 axles so if you already got 5x1 axles there you go. So you can swap flanges between the two Q45 talked about here.

***All other 5x1 output flanges are of the 29 spline variety talked about here EXCEPT possibly (haven't confirmed) a 12/96 J30 that uses the 30 spline output flanges with 2x3 pattern axles that are hard to come by so dont think you can score some J30 5x1 ones and rock a Q45 diff because you cant.

Posted: Fri Sep 18, 2009 10:48 pm
by UNISA JECS
ppctx wrote:I dont know, your a mod, but the guy sells a lot more than he contributes. A Q45 rear end will give you much tallness
ppctx wrote:That was impolite and uncalled for. Are you upset with me because I apparently hurt your good friends feelings because telling you what I think about the seller and that a q45 diff is a good option for you does not account your outburst.
ppctx wrote:Oh, I see. No, I was not implying that you should know anything and that part of the post really wasn't needed. I think I was jokingly implying that the seller could be asked to be a forum sponsor since I usually see his name in the For Sale section vs other sections. I searched his name and he doesn’t sell as much as I thought.

I gotta ask were your a lil mad because I didn;t answer some of your questions you asked in the past about tunning (Nistune), sorry my bad but I get asked alot of questions about tunning and sometimes I forget to get back to people. I had to figure out why you sound like yoru haten a lil bit and I went threw my inbox and outbox and figured that may be why, cause it seemed like I ignored you.

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nissanfanatic wrote:It was moreso the "you're a mod" comment. As if I know everything because I am a moderator.

Please, tell me how hard your school was, and I will share mine. Then we can compare cars. And after that, we can compile work hours. 135hrs of curriculum... I think I have spent more time than that in front of a .50 cal on watch. I REGRET not going to college for the easy life, so I'll go when I'm out. School is the easy life. Even if it is hard, you get to go home at night.
I see were your coming from now ppctx, I didn't even know nissanfanatic was in the service tell now, and its obvious im a Marine by my avatar so you assumed and wrongfully put 2 and 2 together and struck out. Marines dont have feelings. lol

Posted: Sat Sep 19, 2009 6:51 am
by ppctx
UNISA JECS wrote:I gotta ask were your a lil mad because I didn;t answer some of your questions you asked in the past about tunning (Nistune), sorry my bad but I get asked alot of questions about tunning and sometimes I forget to get back to people. I had to figure out why you sound like yoru haten a lil bit and I went threw my inbox and outbox and figured that may be why, cause it seemed like I ignored you.
To be honest, that is exactly it. From post you used to make, you know your stuff, ie the break down you provided above. Wish you would/could spend more time on the forum doing this. I spend a hell of a lot of time on the nets and dont find detail like you've post, were do you get the knoledge from.
UNISA JECS wrote:I see were your coming from now ppctx, I didn't even know nissanfanatic was in the service tell now, and its obvious im a Marine by my avatar so you assumed and wrongfully put 2 and 2 together and struck out. Marines dont have feelings. lol


What do you assume I assumed?

Yea, yea, yea, Marines are tough. I was in a Fraternity with a marine guy that was there to get a degree so he could be an officer (and he did and is). His manners lacked from time to time and the rest of us would have to get on to him for things like telling girls their lip was hairy or they were fat, TO THEIR FACE! He would defend himself by bragging how marines don’t have feelings “Marines don’t have feeling, we spend weeks in the field with no shower, get co-cheese all over our balls, we don’t have time for pleasantries”

I’ve also sat around a camp fire with an old marine, bamboo needle tattoos covering his forearms, weep at regrets of a life he lead and choices made in more youthful days.

Posted: Sat Sep 19, 2009 9:58 am
by crazys14
UNISA JECS wrote:I should add a little more info:

Couple things you should know:

Differential ring gear bolt sizes:

Part # 38102-12S00
S13 - 12mm thread 12mm shank from 07/88 - thru
S14 - 12mm thread 12mm shank from 02/94 – 12/96
J30 - 12mm thread 12mm shank from 01/92 - 12/96

Part # 38102-10V00
S14 - 13mm thread 13mm shank from 12/96 – up
Z32 - 13mm thread 13mm shank ALL
Z33 - 13mm thread 13mm shank ALL
Q45 - 13mm thread 13mm shank 90-96
J30 - 13mm thread 13mm shank 12-96

Part # 38102-RS500
S15 - 12mm thread 13mm shank HLSD

Now some people might wonder what the point of all this, well if you know what differential you have then you know what size ring gear bolt your differential uses, and if you know that then you know what ring and pinion combo's will work for you and or you buy the correct ring gear bolts for your special application,

Based on the application list above the only combo that will require enlarging of the diffrential bolt holes would be if your using a 12mm thread 12mm shank differential with a 13mm ring and pinion set. There is just no way around that.

Just FYI, i have a 12mm j30 r&p on my q45 diff.. the diff shop said its totally fine.. the bolts actually are to clamp the ring to the lsd so they said its fine.. been doing 1.6 60' times with it without any problems

Posted: Sat Sep 19, 2009 10:11 am
by UNISA JECS
crazys14 wrote:
UNISA JECS wrote:I should add a little more info:

Couple things you should know:

Differential ring gear bolt sizes:

Part # 38102-12S00
S13 - 12mm thread 12mm shank from 07/88 - thru
S14 - 12mm thread 12mm shank from 02/94 – 12/96
J30 - 12mm thread 12mm shank from 01/92 - 12/96

Part # 38102-10V00
S14 - 13mm thread 13mm shank from 12/96 – up
Z32 - 13mm thread 13mm shank ALL
Z33 - 13mm thread 13mm shank ALL
Q45 - 13mm thread 13mm shank 90-96
J30 - 13mm thread 13mm shank 12-96

Part # 38102-RS500
S15 - 12mm thread 13mm shank HLSD

Now some people might wonder what the point of all this, well if you know what differential you have then you know what size ring gear bolt your differential uses, and if you know that then you know what ring and pinion combo's will work for you and or you buy the correct ring gear bolts for your special application,

Based on the application list above the only combo that will require enlarging of the diffrential bolt holes would be if your using a 12mm thread 12mm shank differential with a 13mm ring and pinion set. There is just no way around that.

Just FYI, i have a 12mm j30 r&p on my q45 diff.. the diff shop said its totally fine.. the bolts actually are to clamp the ring to the lsd so they said its fine.. been doing 1.6 60' times with it without any problems
People do that and get away with it with no problems, some people make spacer sleeves so it works, no doubt, if someone is anal then they would use the S15 ring gear bolts in this application to get rid of that 1mm play.

Posted: Sat Sep 19, 2009 10:36 am
by nissanfanatic
Mcmaster carr sells the copper tubing that will space the bolts properly to make them the same OD as the S15 ring gear bolts.

All it really does is locate the ring gear properly. A bolt should never be used to hold shear force. Clamp force and coefficient of friction between two surfaces should hold the shear.

Posted: Sat Sep 19, 2009 10:54 am
by UNISA JECS
nissanfanatic wrote:Mcmaster carr sells the copper tubing that will space the bolts properly to make them the same OD as the S15 ring gear bolts.

All it really does is locate the ring gear properly. A bolt should never be used to hold shear force. Clamp force and coefficient of friction between two surfaces should hold the shear.
If anyone is interested heres a helpful link for making the sleeves/bushings for the 12mm ring gear bolts:

http://forums2.freshalloy.com/showthrea ... light=hlsd

Posted: Sat Sep 19, 2009 11:26 am
by crazys14
nissanfanatic wrote:Mcmaster carr sells the copper tubing that will space the bolts properly to make them the same OD as the S15 ring gear bolts.

All it really does is locate the ring gear properly. A bolt should never be used to hold shear force. Clamp force and coefficient of friction between two surfaces should hold the shear.
yeah i thought the same exact thing but diff shop said its totally fine and its under warranty so if anything happens i'll probably do that

so the S15 bolts actually thread into the j30 r&p but are 1mm wider? thats pretty gangster

Posted: Sat Sep 19, 2009 11:37 am
by UNISA JECS
crazys14 wrote:
nissanfanatic wrote:Mcmaster carr sells the copper tubing that will space the bolts properly to make them the same OD as the S15 ring gear bolts.

All it really does is locate the ring gear properly. A bolt should never be used to hold shear force. Clamp force and coefficient of friction between two surfaces should hold the shear.
yeah i thought the same exact thing but diff shop said its totally fine and its under warranty so if anything happens i'll probably do that

so the S15 bolts actually thread into the j30 r&p but are 1mm wider? thats pretty gangster
Yes heres what they look like:

Image