465/208 question

[Chevy305]

Ok so I just swapped out t-cases just replacing a busted 208 with another one. When I sepparated the two there was a decent amount of gear oil from the trans sitting in the adaptor, but i didn't think anything of it until when I had the new tcase bolted up and after a test drive i noticed a decent gear oil leak from between the adaptor and the tcase. Is there supposed to be gear oil from the trans in the adaptor, or am I just crazy?

 

[k30bb468]

It's ok for a little bit of gear lube to be in the adapter.
In order for the adapter to seal against the tranny you must use a gasket of the proper thickness, this also sets the correct preload on the rear output bearing. Without the gasket you can burn up the rear output bearing, crack your adapter & have a leak that will not stop.

 

[Chevy305]

It's ok for a little bit of gear lube to be in the adapter.
In order for the adapter to seal against the tranny you must use a gasket of the proper thickness, this also sets the correct preload on the rear output bearing. Without the gasket you can burn up the rear output bearing, crack your adapter & have a leak that will not stop.

I've never heard of that before

 

[dyeager535]

Seat the adapter against the trans without the t-case hooked up or the right gasket, and you'll see that it will or can hit the lower bearing.

Been known for quite awhile here... http://coloradok5.com/forums/showpost.php?p=945335&postcount=9

 

[Chevy305]

oh i see what you guys are saying but i never separated the trans from the adaptor. I just swapped the tcase. My leak is between the tcase and the adaptor.

 

[7387chevynut]

Pretty sure for T-case/adaptor end........there is a large rubber O ring that seat's on the round Circular T-case end..........if that is missing, it can cause oil to leak out.