1jz with different diffs

[OneJSupra]

If you do a lot of highway pull your best bet for better balance will be 3.91. But if you want to go insanely fast like me get a 4.3 ... :burnout:

 

[Dylan JZ]

If you do a lot of highway pull your best bet for better balance will be 3.91. But if you want to go insanely fast like me get a 4.3 ... :burnout:

always on the same page.. If I didnt constantly use the highway, a 4.3 lsd would be in my future.

 

[OneJSupra]

always on the same page.. If I didnt constantly use the highway, a 4.3 lsd would be in my future.

I swear I think it's your mission to read and to reply to every post I make. A 1jz @ 12 psi on 2nd gear with 4.3 lsd is like speedy gonzalez on steroid. :naughty:

 

[Dylan JZ]

I swear I think it's your mission to read and to reply to every post I make. A 1jz @ 12 psi on 2nd gear with 4.3 lsd is like speedy gonzalez on steroid. :naughty:

:sarcasm: mwahaha.

 

[JustinGotA1j]

I have sourced a diff locally now. Its a 3.73 :icon_bigg Just gotta get the son of a bitch installed now. Any tips? Also are there any sort of seals or anything that I should replace while the thing is out to ensure I get as much life and performance out of it as possible. I only want to swap it once. Thanks!

 

[Bigzavs]

i used to run a 4.30 LSD with my first single setup, i spun 255 tires up into 4th gear. it was pretty retarded with the acceleration.

now that im a biggety big turbo, ive opted for a 3.73 (gotta keep up with the local single mkivs on the highway) also it helps out on the highway mileage with the lower rpms

 

[xsjado]

Currently I'm running a 4.56 LSD with mine, insanely quick off the line but there is way too much wheel spin, should be interesting when I get it back. Only problem I had with my 3.73 LSD was that it died. Once I get it rebuilt it will be going back in, from the seat it felt like the 3.73 was quicker overall because I didn't loose as much time changing gears and sliding all over the road.

 

[one jay]

how much power are you making? 3.73 might feel a little long in the later gears, where a 4.30 will rip all the way through fifth even on stock twins. i'd say go with the 3.91's for good overall economy and performance.

 

[FIL]

it's usually easier to just source it as a whole unit.... and once you've swapped em a few times, it becomes a fairly simple job

just make sure you have a good trolley jack to lift the new one in with... it also usually helps to drop your exaust...

 

[JustinGotA1j]

it's usually easier to just source it as a whole unit.... and once you've swapped em a few times, it becomes a fairly simple job

just make sure you have a good trolley jack to lift the new one in with... it also usually helps to drop your exaust...

Thanks for the tips. I'll have the help of a very knowledgeable supra nut so I don't imagine I'll have too many bloody knuckles or curse words coming out of my mouth after everything is said and done. One quick question though: I always notice that diffs look like hell under the car so would it be a good or bad idea to give the outer shell a quick sand and then throw some black paint on it?

 

[Jayhall]

Thanks for the tips. I'll have the help of a very knowledgeable supra nut so I don't imagine I'll have too many bloody knuckles or curse words coming out of my mouth after everything is said and done. One quick question though: I always notice that diffs look like hell under the car so would it be a good or bad idea to give the outer shell a quick sand and then throw some black paint on it?

let me know if you need a hand, ive done a few of them recently. Is Don helping you?

 

[JustinGotA1j]

let me know if you need a hand, ive done a few of them recently. Is Don helping you?

Haha ya Don is selling me the diff and helping me out with the switcharoo. I'll definitely give you a shout if I need a hand though. Thanks!