[cboardman]

Other than LSD what is really the main difference between the nt and turbo rearends? Arent they the same size? the reason Im asking is because I saw someone making gears for the non-T rearends and not for turbo cars?

any insight?

Thanks,
Chris

 

[Guest]

the ratio's are different... the NA is a 4:30 and the turbo is like a 3:70 or a 3:90 something... im sure someone knows for sure... you can get a lsd in an NA.... mine has it

 

[ma71supraturbo]

sport package NA's have a 4.3 LSD

87-88 turbos have a 3.9X lsd
89-92 turbos have a 3.7X lsd

1jz supra have like a 4.1 lsd IIRC

you can interchange the above (ie direct fit bolt-in)

 

[cboardman]

but why do they sell gears for a non turbo but not a turbo car?

 

[ma70man]

I think they are interchangable. Where did you see them?

 

[cboardman]

I think it was Superior Axle and gear.. they make mostly truck ring and pinions...

 

[viperlocc]

sport package NA's have a 4.3 LSD

87-88 turbos have a 3.9X lsd
89-92 turbos have a 3.7X lsd

1jz supra have like a 4.1 lsd IIRC

you can interchange the above (ie direct fit bolt-in)

so the 1jz 4.1 lsd IIRC will fit? sweet...now what is IIRC?

 

[cboardman]

they make a killer set of 4.10 gears and up to a 5.67? for a non turbo supra and 4-runner/truck..

go here and look at the .pdf file http://www.footeaxle.com/Pages/start.html
its at the very end of the list..

Chris

 

[cboardman]

I f I R ecall C orrectly

 

[hawkeye]

5.67??? According to the math that would mean at 65 mph, you'd be at almost 6000 rpm...

 

[Guest]

5.67??? According to the math that would mean at 65 mph, you'd be at almost 6000 rpm...

but you'd have a hell of a time getting there

 

[Guest]

but you'd have a hell of a time getting there

word!

 

[88turbocharged]

hrmmmmm

I have an 88turbo with a blown auto tranny, i just bought an 87 na to do a five speed swap, would it be worth it to change the rear differential? how can i tell if it is lsd and has those 4.30 gears? the engine does not run

 

[jbsupra89t]

www.jza70.com has a good bit of rear end information

 

[cboardman]

it will say LSD on the rear end, facing the rear bumper..
Chris

 

[DaleH]

Hey guys I got me a 89 rear end the 3.73 one and I am deciding either completely rebuild it or put a torsen heart in it. It depends on how much the clutch plates and everything for the differential cost from toyota. If they don't ask for my 2nd born child for the clutches and what not for the LSD then I will go that route but my question is does the Torsen Differential the actual heart not the ring and pinion have pose trac so i will still be dual wheel drive and leave two patches when burnout, I am pretty sure it does. Thanks.

 

[88turbocharged]

i read the web page up above and i thought it said that if you lost traction with one wheel it wouldn't spin posi, the best for posi by what i read there and by my understanding is the clutch type, OR welded open diff, which i want to learn how to do because that is all time posi