I have tried the 3.91 though I was spent much for it, it is worth it! I'd never expect that I have had the best 3.91 of all. 
Differential differences
- Thread starter Fd_daderp
- Start date
All Supra LSD's have a tag on the rear cover that says "LSD Oil Only". That tag could fall off over time however. The easiest way to see whether there is an lsd or not is to jack up the back of the car, put the transmission in Neutral, and spin the tire on one side. If the other side moves in the same direction that you're spinning the tire on your side than it most likely has an LSD. If it spins in the opposite direction than it is an open differential. If it is an LSD it will also be easier to see what the ratio is, as movement from the tires directly translates to movement of the driveshaft. Spin the tire 1 360 degree revolution, and count how many times the driveshaft makes a 360 degree revolution. Making a chalk mark on the input flange of the diff and housing will make rotational reference much easier.
SGinNE
SGinNE
IJ.;1687072 said:Ran 3:1's with my Turbo LSx swap
Doesn't count! You weren't using a Supra pumpkin... cheater!
I'd do it too, but the cost would surely make my wife red in the face.
IJ.;1687072 said:Ran 3:1's with my Turbo LSx swap
Are there more details on your rig somewhere? Curious about it all 'round.
SGinNE
Sell ya mine at a very reasonable price considering what it cost me to buildGrimJack;1687133 said:
Yeah in Members Rides there's a bunch of threads/pics.spencyg;1687153 said: