Question about LSD swap

[PIONEER]

can you tell me if I can put a 3.73 LSD in a 3.91 N/A Non LSD diff? or I'm better off swapping the whole thing. The 3.91 is in a cressida and the blot pattern is different so some hacking is needed on the rear xmember to make it fit.

Also, anyone rebuild a LSD yet and can tell me how much it was ??

 

[DrakeMK3]

So....are you trying to put the clutch packs, etc. from a supra lsd into the pumpkin of the cressida lsd?

 

[Jeff Lange]

The ring/pinion should fit fine
The differential itself should fit fine in the pumpkin

As long as they're both 8" diffs, it should be all good.

 

[drjonez]

IIRC the cress uses the 7.5" diff.

 

[DrakeMK3]

IIRC the cress uses the 7.5" diff.

You sir, are correct. I just looked it up.

 

[PIONEER]

I have a 2 part problem

1 the 3.91 is throwing my Gas milage off like crazy.
2 when I get on the gas 1 tire looses Grip

So I figure with a 3.73 I can take care of both of these problems. I have a 3.73 I pulled out of a 91 but I think the clutches are busted on it.

 

[flubyux2]

yeah... i was going to say, you may want to try to grab another rear end from another soup. swapping a diff inside the rear end isnt that easy. im always afraid of the crush bearings and preloads and shims and shit. eventually, ill end up building one for myself w/ truck parts