Ok just wanted to see how final drive affected the rest of the gearing? I know alot of people buying the jdm final drive which is 4.7 but what about an ls final drive will that work the same way? Has anyone done this have they noticed anything different in the 1st 4 gears? Any info on this would be helpful

 

The final drive can shorten or lengthen your overall gear ratios. The 4.785 JDM final drive will shorten all gears in trannys that are normally equiped with the 4.4 final drive.

About the LS FD (Final Drive), most B series tranny FD's are 4.4. It would make no differenece the install the LS FD into the GSR tranny. If you were to install the LS FD into the the 98+ JDM ITR tranny with the 4.785 FD, all gears would be lengthened (not good for performance).

 

final drive also doesnt effect the rpm drop when shifting. final drive is equilavent of the rear-end gear most mustangs and camaros have(i.e. 3.73, 4.11, 4.56). it merely just gives you less top-end mph and more accel if you are going with a bigger number. more top end mph if you are going with a lower number.

 

well ive got a jdm y1 trans w/ a 4.2 final drive but want something a little better woudl the ls final drive help me out. Its free and dont have to pay for the part.

 

for the amount of time and work it takes to rip apart your tranny, putting in another 4.2 fd is not worth it. maybee if you can find a 4.4 fd from a b16 or b18c, but i would not go through the hassle for putting in an ls fd. you are more than likely getting it for free because no one wants it and whoever you got it from would not have been able to sell it for more than a piece of bazooka bubble gum