rear tranny seal leak - The 1947 - Present Chevrolet & GMC Truck Message Board Network

swdobbs · 01-14-2003, 10:34 AM

I got the 4spd swapped over for a fresh TH400 and as my luck goes the junk yard 2pc driveline out of a '68 w/TH400 has a severe vibration. (I've sent my original 2pc in to be shortened/balanced

Now the new tranny is leaking from the seal at the tail housing after less than a mile. Is the vibration causing the leak? The slip in yoke was cleaned, did I pinch the seal somehow? Could the tranny be overfilled?(Its not coming out the vent).

thanks....swdobbs

01-14-2003, 10:34 AM	#1
swdobbs Registered User Join Date: Oct 2002 Location: MT Posts: 98	rear tranny seal leak I got the 4spd swapped over for a fresh TH400 and as my luck goes the junk yard 2pc driveline out of a '68 w/TH400 has a severe vibration. (I've sent my original 2pc in to be shortened/balanced Now the new tranny is leaking from the seal at the tail housing after less than a mile. Is the vibration causing the leak? The slip in yoke was cleaned, did I pinch the seal somehow? Could the tranny be overfilled?(Its not coming out the vent). thanks....swdobbs



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