Converting R32 Gts4 To Gtr Box

[MADGT4]

Just wondering if there are any difficulties in doing this job?

I have been having trouble with 4th gear for a while now and after reading over the RB20 Box thread beleive it to be the 4th gear syncro.

Now would anything need to be changed re: Push to Pull clutch? Diff's?

This is something i'd like to look at doin even if the box is still alive as i would like it to be strong but i don't have the option of going to a RB25 box even though the GTR box is very similar.

Any help would be appreciated.

Cheers

[Medium Dave]

As far as I am aware the two gearboxes are the same except for the input shaft, ie same strength... This is part of an email I recieved from daniel at fitzpatric speedworks:

If manual the gearbox will take it no probs they are basically the exact same as a gtr except the input shaft size and this isnt where the weakness is, but a gts4 box will be fine for 250rwkw as long as you respect it and dont flat change or violently drop the clutch etc

Hope this helps

[Stronzo]

hnr32 (gts4) and previous-term bnr32 (gt-r) boxes are both push-types, from 1993 all bnr boxes are pull-type.

There is a difference in gear ratios -- bnr box has 1,2,3,5 gears "longer" cause it is more suitable for high torque engine.

afaik both boxes are equally strong and there is no differences in reliability.

p.s. since bnr32 and hnr32 have different final gear ratio -- they should have different speedometer gears in transfer case and different speed sensors. i`m not sure -- it is wise to check it with NISSAN FAST.

[MADGT4]

As i'm "PLANNING" a rebuild with Cams, Cam Gears and a 2530/5 with the rest of the supporting goods would it be safe to say the GTR box would be a good option then with the added power/torque (as far as dealing with the ratios)?

As i know the ratios are different because i'd be lucky to get 45-50km/h tops out of 1st in my GTS4. Now i'm not after some stupidly high 80km/h in forst or anything.

Im just after something with a little taller ratios thats all?

Any opinions?

Edited June 16, 2006 by MADGT4

[Bl4cK32]

Foolboost here in SA has a gtr box and clutch in his gts4 running behind his rb30det. Its just been discussed in the last page or two in the rb30det thread (huge one)...

[MADGT4]

Foolboost here in SA has a gtr box and clutch in his gts4 running behind his rb30det. Its just been discussed in the last page or two in the rb30det thread (huge one)...

Cheers i'll check it out.

[Ruffels]

im fairly sure my R32 gts-4 has a gtr box in it.. but it was put in when my gts-4 was converted from auto to manual.. mot likely in japan

anyone wanna varify if this is a gtr box or not

-Ruffels

[gts4diehard]

You won't be able to tell from the outside, the box casing is the same and as far as I know the numbers are too. The only way will be to check the speedo against a gts4 with a gts 4 box or jack the car up, car in 1st, wheels off ground (supported by stands of course) and turn the engine over by hand and count how many times it takes to turn the prop shaft 1 turn - and compare against the gearbox ratios of the two boxes.

Edited June 16, 2006 by gts4diehard

[funkymonkey]

R32 GTR box will work in a R32 GTS4, you just need to swap the final drive gear from the GTS4 box into the GTR one so your speedo keeps reading right.

[Bl4cK32]

Looks like u got a slow oil leak there Ruffels Nice std front pipe too