Zyrano

Just like the title said, I had to replace my axle on my 82 gsl. I just picked up an axle from the 84, I'd like to know if the LSDs are the same so I can rebuilt one while I drive around on the other?

Thanks,

Alvin

Rx-7Doctor

iTrader: (13)

Are you refeering to the diff or the axles because the axles are different in 84-85 as far as the bearing size.

Diffs changed the size of the flange in mid 83-85. So you need to change the driveshaft.

Midwest 7's

iTrader: (4)

i think the actual lsd unit is the same.
they switch from 24 to 27 spline axles though.

Zyrano

Yup, I mean the LSD unit, what I want to know is if I rebuilt my LSD from my 82, will I be able to bolt it into the 84 rear end and axle.

Alvin

Midwest 7's

iTrader: (4)

actually part of the lsd unit would be threaded for the splined axle so i dont think it would work. the clutch disc are the same though i bet.
sorry im not more help but i have neven taken a lsd unit out before.

Rx-7Doctor

iTrader: (13)

I am going to have to say no if the splines are different. And you cannot use 84-85 axles in the 79-83 housings.
Someone please correct me if this is incorrect.
I have only swapped complete rear ends and replaced diffs for diffs or upgraded Se units into 84-85 models.

trochoid

iTrader: (6)

Looking through my 1980 Differential Overhaul manual, along with the 85 FSM, it is the side gears that the axle splines mate to. If the side gears with different spline counts are interchangeable between the 2, it may work. It will require tearing down and rebuilding the diff to change the gears.

Simple answer to your question is no. You would need both units torn down to swap side gears, and there is no guarantee if they are even intechageble. Not only the side gears, but the diff units themselves.