ZF 6 Tailstock (Speedo Cover) leak 1992 ZR1 - ZR-1 Net Registry Forums

Tripper_1966 · 08-30-2016

Having an ongoing issue with the tailstock housing leaking tranny fluid where the slip yoke slides onto the tranny. Tranny oil is leaking onto exhaust while driving and drips onto ground after the drive.

as a recommendation from Bill (ZFDoc) rebalance driveshaft and put black lithium grease into double lip seal. Was done by the service dealer and sent out to a special shop to balance. Dealer installed new aftermarket seal in tailstock (speedo cover) and installed 10W60 oil. Leaks worse now.

Back to the dealer and they said the vent tube to the tranny was plugged, they fixed that and suggested to install a factory GM seal into the tailstock. Leaks the same as after the first seal replacement.

Initial leak was less than the two repairs.

Car has original tranny, driveshaft, etc. and less than 8000 miles.

Dealer and myself at a loss where to go next.

Wonder if this has happened to anyone and any suggestions?

Thanks

08-30-2016	#1
Tripper_1966 Join Date: Apr 2013 Location: Barrie, Ontario Posts: 20	ZF 6 Tailstock (Speedo Cover) leak 1992 ZR1 Having an ongoing issue with the tailstock housing leaking tranny fluid where the slip yoke slides onto the tranny. Tranny oil is leaking onto exhaust while driving and drips onto ground after the drive. as a recommendation from Bill (ZFDoc) rebalance driveshaft and put black lithium grease into double lip seal. Was done by the service dealer and sent out to a special shop to balance. Dealer installed new aftermarket seal in tailstock (speedo cover) and installed 10W60 oil. Leaks worse now. Back to the dealer and they said the vent tube to the tranny was plugged, they fixed that and suggested to install a factory GM seal into the tailstock. Leaks the same as after the first seal replacement. Initial leak was less than the two repairs. Car has original tranny, driveshaft, etc. and less than 8000 miles. Dealer and myself at a loss where to go next. Wonder if this has happened to anyone and any suggestions? Thanks __________________ [B]1992 ZR1, #454[/B] [I]Stock and mint with 6600 miles[/I]