awd and fwd gbox differences

90brumby · Post by **90brumby** » Sat Jun 23, 2007 11:49 pm

as some may no ive brought daves lib with the awd gbox and it has blown 3rd gear wat i am wantin to no is wat r the differences between the 3rd gear in a awd gear box and 3rd gear in a fwd gbox
and also how hard is it split the ejbox
its a 1990 gx with rs turbo conversion i believe it is 4.11

thanks

YouTube · Post by **El_Freddo** » Sun Jun 24, 2007 1:11 am

Differences would be the input shaft from the motor - no dual range. I don't know if this will stop you with the gearset swap. The drive shaft to the diff would be shorter as there is no centre diff to feed power to. This would be your other problem.

If you know an engineer or machinist you could have all the gearsets pushed off the shafts and swap them over with the good gearsets. Probabily more expensive than getting another dual range box and swapping over any "good bits" that have been put in with the conversion... This would be the way to go if you were doing it yourself, does mean some time off the road for the car but it will keep the hip pocket happier.

Cheers

AlpineRaven · Post by **AlpineRaven** » Sun Jun 24, 2007 7:48 pm

if it was RS Box Australian import would be 3.9:1 and rear diff would be 3.545. Unless its a Jap box.

To spilt EJ boxes aren't hard - I think its same as EA box.
Cheers
AP

Suby Wan Kenobi · Post by **Suby Wan Kenobi** » Sun Jun 24, 2007 8:00 pm

The inners of the FWD and the AWD are slilghtly different the gear ratios are also different.

AlpineRaven · Post by **AlpineRaven** » Sun Jun 24, 2007 8:14 pm

Best way is to take apart and grab vernier gauge and measure.
Cheers
AP

90brumby · Post by **90brumby** » Sun Jun 24, 2007 10:56 pm

the rear LSD has 4.11 on it so thats where i got the idea from
but im gonna ring subaru 2morro and find out if theres much of a difference in the part numbers

chriSTIan · Post by **chriSTIan** » Mon Jun 25, 2007 7:15 pm

Yes 4.11 jdm running gear with smurf juice(i sold car to Dave).

AndrewT · Post by **AndrewT** » Mon Jun 25, 2007 8:24 pm

chriSTIan wrote:Yes 4.11 jdm running gear with smurf juice(i sold car to Dave).

I heard the current gearbox was already swapped out once in that car since that sale, I might be wrong though. Pretty sure.
I guess it would have to be a 4.11 jdm still though to match the rear diff.

90brumby · Post by **90brumby** » Mon Jun 25, 2007 10:56 pm

it still has that redline oil in it but i dont believe that the box has been changed the clutch has

D3V1L · Post by **D3V1L** » Tue Jun 26, 2007 6:39 pm

the gearbox was changed, to an identical JDM box, bought from japanese wholesale, again, some redline oil was put back in it caus im in love with the stuff

dave