S13 Vs R32 Gtr Rear End

[migs]

hey guys i was just trying to figure out whats the difference in the r32 GTR and the s13 rear end

#1- i know the GTR rear is stronger than the s13, am i right?

#2- is the r32 GTR rear end wider than the s13 rear end ? (if so how much wider)

#3- whats the difference in the gear ratios

The reason i need this info is -

i was going to change the rear suspension and diff in my project car to a complete s13 rear end

then a few people was telling me that i should just use the r32 GTR rear end as its stronger

i can locate the r32GTR and the s13 rear from a friend easy so the price does not matter

just looking for the most reliable rear

[wlspn]

The GTR has a better diff. Unsure of ratio at this time of morning but is a stronger unit overall.

Also if you will be using the hubs the GTRs are alloy saving around 5kg in unsprung weight which is a huge advantage.

Whats it going into?

[Duncan]

actually, they both run an r200 diff so both able as each other to handle the same power. the gtr one does have a factory mechanical 2 way centre while s13 is viscous LSD.

gtr driveshafts are stronger

gtr hubs are alloy

they have the same geometery including the poor front mounting point for LCA (fixed in R33/S14 onwards)

[GTR1993]

actually, they both run an r200 diff so both able as each other to handle the same power. the gtr one does have a factory mechanical 2 way centre while s13 is viscous LSD.

gtr driveshafts are stronger

gtr hubs are alloy

they have the same geometery including the poor front mounting point for LCA (fixed in R33/S14 onwards)

Can you elaborate a bit? If this is the case i will go pick up a later model subframe and transfer over my gtr gear! (is this possible?)

[Duncan]

there is a minor difference in the location or the front end of the LCA between 32 and 33 subframes, on the 33 it is about 2cm lower. Not a big deal unless you are chasing the last 1/10th in lap times

[sr_ceffy]

if this is going into a gtst or s13 you wont be able to use the alloy hub backing plate as the shock mounts are different the way around this is you will need to purchase r32 gtr rear coilovers pretty sure the track (widths) are the same and you will have better brakes and diff with the gtr diff cradle is stronger also the gtr cradle would be your best option althougha lil morefiddly to install

[migs]

THANKS FOR THE INFO GUYS

my project vehicle is a RB powered 1984 Mitsubishi sigma, witch originally can with a live axle rear end (Banjo type)

so i was going to install a complete s13 rear end

So now that i know the GTR rear will be stronger & about the same track most of my problems are solved

will keep y'all up to date with my project

the other thing is ill be using a Custom one piece drive shaft will that be a problem or it will be all good ?

[Duncan]

no problems at all with a 1 piece, plenty of people use them.

In your case you need to watch out for driveshaft angles of course being a custom setup

[sr_ceffy]

yeh you cant have the drive shaft level between the diff and gearbox uni joints dont like it as they wear unevenly