open or lim slip

[pinto pete]

i have an open 3.9 diff, it wines like at cat so i am changing it this weekend.

i am replaceing it with a 3.6 lsd out of a 4x4.

the 3.9 should be under warnty ?

so when i get it back will it be better to refit it or keep the 3.6 lsd

[Paul Ash]

Take the lsd out of the 3.6 and put it in the 3.9. So you end up with a 3.9 LSD.

This is all of course relavant to set up. i.e engine/g/box/wheels etc. and that they sre both 7" diffs.

But 3.6 will give your more top end and less acceleration if 3.9 is what you normally run.

[pinto pete]

the 3.6 is a 7" the 3.9 is a 7 1/2" will this make a diferance

[stu999]

Yep, you wont be able to use the 3.9 CWP in the 3.6.

Also, to fit the 7" diff into a chassis that has had a 7.5" diff fitted, you will need a half inch spacer for the top mount, as well as a long stud, again for the top mount, as opposed to the two bolts that the 7.5 uses...

[pinto pete]

iv'e got all the studs and spacers came with the kit.

i'm gonna open it up to make sure it's clean.

is it just normal diff oil for a refill

[deano.1]

Oh and you'll be able to do donuts with the LSD

[stu999]

is it just normal diff oil for a refill

Yup, normal diff oil...