OK. I developed quite the leaky slip yoke. I replaced the seal twice and ended up going to the Chevy dealer and asking one of the transmission techs there. (you might remember me posting this problem) ( I tried everythig; packing the seal w/ grease and checked the YOKE for burrs, dryed the seal, applied LIGHT coat of oil on install.)

It would only leak when I got on it in 2nd, or at high RPM's. THe tech told me that it was the bushing in the ext housing of the T56, not the seal. I installed a BMR adjustable TQ Arm about a year ago, along w/ an Energy Suspension Trans mount. Would this increaded load on the tailshaft of the trans cause the bushing to fail? I also installed LT's and had a dyno tune. I drove 2100miles from CT to NM w/ out a problem. Mabie leaking due to it's newly appointed daily driver status? I very seldom do brake stands, or smoke shows.... I do shift hard when I race... (of course)

I'm looking at the BMR TQ relocation bracket.

 

Something isn't clear.... you had a pinion seal leak, but the tech told you it wasn't the seal, it was the bushing in the "ext" (tailshaft?) housing of the T56??? How could a leak on the pinion be confused with a leak from the tranny? Or were they both leaking?

Sounds like it might be related to incorrect pinion angle setting.

 

My misprint. I appologise. I mix those words up alot. (I fixed my original post also)

My -slip yoke- was leaking. I replaced the seal and two days later it started leaking again. I replaced the seal AGAIN thinking I got a bad one. When it went for the third time. I asked around on here, but to no avail.

I got fed up and took it to the Chevy dealer to check up on some TSB's. I talked w/ the tranny tech and he told me that it wasn't the seal that actually stops the oil, it's a bushing inside the extension housing (tail shaft) of my T56. ... (my guess is the seal is kind of light duty) He had a dismantled t56 there and showed me what it was.

Could this have been caused by the aftermarket TQ arm adding increased stress to the tail shaft of the trans?

Could be a stupid question. It just passed through my mind.


Hmm... I went through a tranny before a rear end....