snapped drive pinion fj 40, 1974

[kruza wazza]

just been out and snapped rear drive pinion
would the drive pinion out of a spare front diff/ same ratio work or not?
yours in HP

warwick

[Pedro]

just been out and snapped rear drive pinion
would the drive pinion out of a spare front diff/ same ratio work or not?
yours in HP

warwick

Ideally you would put a matched crown wheel and pinion in for smooth and quiet running, if how ever you have a crown wheel and a spare pinion from different sets then rock on, life span may not be great, it may be noisy, i have done it in a vehicle years ago and could not hear it over the V8 anyway,

Cheers


Pedro

[Bulletproof]

just been out and snapped rear drive pinion
would the drive pinion out of a spare front diff/ same ratio work or not?
yours in HP

warwick

You cant just fit the pinion by it self because they are a matched pair with Crownwheel so you have to fit both.

Cheers Richard

[kruza wazza]

but the crown wheel is diff ?? or not ,??

[Bulletproof]

but the crown wheel is diff ?? or not ,??

Up until 1990 cruiser front and rear diff had the same ring and Pinion.
After that they had a reverse cut in the front

Cheers Richard

[kruza wazza]

so , remove axles then diff head and swap ? front spare to rear ?? W

[mickey]

will work if the rear diff is full floater.
if semi floating it wont work.

[kruza wazza]

what is the differance?

[Bulletproof]

what is the differance?

If you look at the stub you will see the Axle has a flange that is bolted in on a fully floating. If you undo those bolt the axle will pull out.

On a semi floating they have C clips in the diff that holds the axles in.

Big Difference and a Semi floating won't fit in the front diff.

Cheers Richard

[sig]

you can use the front head in the rear .just need to run the block and pin in between the side gears and make sure the side gear shims are a snug fit when installed