Will A R33 Diff Fit A R32 ?

[FLYNLO]

ok i need to know if a R33 gtst Diff will fit into my R32 gtst. i was thinking of welding it, to be a lock diff. and just use it on track days. any info will help please

[R32Dreamer]

Come on guys, this is exactly what i want to know as well. Will an R33 Diff, Housing and all, fit in an R32 GTS-t?

Cheers

[jonesl]

+2 for this.. Someones gotta know.

im leaning towards Yes. bolt on parts are all the same. only difference i can think would be in the HICAS being electronic.

[clip14]

i have a r33 diff ready to go into my r32.

since i havent put it in yet, i am not 100% sure about this but this is what ive done so far

swap the backing plate off the r32 diff (4 bolt cover) onto the r33 diff. the r33 diff has a 2 bolt backing plate which wont fit your r32 subframe.

the front two diff bolt loops (near the main driveshaft) are a lot larger on the r33 diff. so you will need some bushings and longer bolts to accommodate the bushings to fit the r32 subframe.

other than that i think it should fit

they are both r200 diffs and should both have the 5x1 bolt axle pattern.

[r32_doriftoo]

Hi guys,

sorry for revitalizing this topic.

There is someone who wants to swap his R33 2way diff with my r32 OEM diff. Will it fit plug and play? I read the posts above but I'm not 100 % sure about clip14s post. Do I have to switsh the whole diff, with back plates etc. or is there a possibility just to fit the inner part of the diff into the housing?

For example putting this :

into this :

(Those are just example pictures to show you guys what I mean)

I hope you can help me out.

Cheers Dom

[bubba]

Crown wheel bolts are bigger diameter on the R33gtst diff. (Crown wheel has to stay with the housing because it matches the pinion gear, R32gtst and R33gtst are different ratios)

[Josh_r32]

the centres are the same...

i have put two r33 gtst diff centres into my r32 gtst r200 diff housing..

r33 housings are heaps different then r32 housings.

u need to use ur half shalfts from your r32 diff also, as r33 are 6 bolt from memory?

[bubba]

Don't think 33gtst is 6 bolt.. GTR is 6 bolt and S13 is also 6 bolt but in a 3x2 config.

I'm also pretty sure that R33 crown wheel bolts are 12mm where R32 is 10mm. Which is why I ended up going for an S13 centre.

[Josh_r32]

Don't think 33gtst is 6 bolt.. GTR is 6 bolt and S13 is also 6 bolt but in a 3x2 config.

I'm also pretty sure that R33 crown wheel bolts are 12mm where R32 is 10mm. Which is why I ended up going for an S13 centre.

wont matter what size the crown wheel bolts are if you are replacing the whole diff centre

[Fooie69]

So then can a 32 diff housing fit into a 33? Sorry dumb question. Probably been answered above but I'm not sure.

[PWND]

Sorry to resurrect this, once again.

I have read the above, but just want to be clear.

I am looking to fit a r33 tomei 2 way diff centre into my r32 gtst.

Is this possible and will I need anything extra?

[R TUNE]

Any more info as i am now in the same boat, fitting 2 way lsd from r33 gtst to a 32 and the 32 stock lsd in to the r33.

cheers

[tm_r33]

crown wheel and pinion are matched. you are not meant to put and existing center ( with a random crown gear) into a different housing because the pinion and the crown wheel wont be a matched pair. u can swap pinion drive if u like but u need a press.

running unmatched crown and pinion can cause them to eat the case hardening off each other and at the least be noisy.

the 32 subframe accepts the 4 bolt housing cover from the r32 r200 diff

the 33 r200 diff has a 2 bolt housing cover to suit the r33 subframe.

[waxracing]

I have an r33 diff in my r32

it bolts in, you have to change the backing plate but thats no issue.

They also have rubber mounts on the front bolts which reduces vibration

[R TUNE]

cheers for that waxracing.

also who knows the ratios for the two diffs

Edited January 14, 2011 by R TUNE

[bubba]

R32 GTSt manual is 4.3:1 and I think R33 GTSt manual is 4.1:1.

[R TUNE]

Does some one have any pics with labals for the parts the have to change, im still trying to get my head around what needs to change with what in order to the diffs to swap around.