How can u check wat rear gear size u have I know its a lsd set but idk if its the 3.90 or 4.30 is there a way the vin tells u ?
checking gear size
- Thread starter webbs7mgte
- Start date
Yeah you can tell from the VIN.
Or you can look at your data tag on the car to get the axle code.
Or you can know that N/A's have 4.30:1, 87-88 Turbos have 3.91:1, 89-92 Turbos have 3.73:1. All Turbos have LSD, and some N/A's do too. They're all 8.0" Toyota G-series differentials.
Jeff
Or you can look at your data tag on the car to get the axle code.
Or you can know that N/A's have 4.30:1, 87-88 Turbos have 3.91:1, 89-92 Turbos have 3.73:1. All Turbos have LSD, and some N/A's do too. They're all 8.0" Toyota G-series differentials.
Jeff
So do you guys think its a big difference in acceleration from a 3.7x to a 3.9x ?
For example my friends Mustang GT has like a 3.3x (something like that) and he bought some 4.10's and installed them. Now the car has a great launch but on roll races it falls flat on his face.
I was thinking of changing to a 4.30 but hows acceleration on Turbo Mk3's on roll races? Or are the stock gears better for roll races?
Ohh and i heard something like the turbo takes longer to spool with 4.30's at from a stop. Would this also apply when changing from 3.7x to 3.9x? LOL too many questions i know
For example my friends Mustang GT has like a 3.3x (something like that) and he bought some 4.10's and installed them. Now the car has a great launch but on roll races it falls flat on his face.
I was thinking of changing to a 4.30 but hows acceleration on Turbo Mk3's on roll races? Or are the stock gears better for roll races?
Ohh and i heard something like the turbo takes longer to spool with 4.30's at from a stop. Would this also apply when changing from 3.7x to 3.9x? LOL too many questions i know
I haven't driven the 3.73 but My 87 turbo 3-3100k RPM around 78mph or something I think I can't remember for sure what it was when stock.
I will say that it is a top end car.
155 on the highway and set the cruise
I don't think I would swap rear ends for playing on the street.
Drive your car and you'll know what you want.
I will say that it is a top end car.
155 on the highway and set the cruise
I don't think I would swap rear ends for playing on the street.
Drive your car and you'll know what you want.
redmaro;1125421 said:
How's your power delivery?
I run 4.30s in my car, but I have tons of power from 4k-7.5k. If you have a narrower powerband, you could very well fall out of it on a shift.
They make for a wicked launch on slicks, but on the street, I have lots of traction issues with a 4.30, and highway cruising sucks balls.
Another thing to keep in mind is it's difficult to re-gear the R154 speedo drive for a 4.30 rear-end. How the PO did it on my car, I have no idea.
thanks to eveyrone i have a 87 turbo so im guessing it is a set of 3.90's r 3.90s a perfered gear ratio?