Trans Third Gear Shift / Fluid - ZR-1 Net Registry Forums

gbmidyear66 · 07-24-2010

My ZF does not shift cleanly into third gear. Below about 2500 RPM it will stop short of going fully into gear and needs an extra "push" to fully engage. At 3K and above it goes into 3rd clean and smooth. Anybody else experience this?

The shifter returns well to the center position. It appears from the records I have that the fluid was changed 10K miles ago (7 years) and it has the GM fluid in it.

Other than the obvious solution... "never shift below 3K!" - I am wondering if switching to the Castrol product or to the Amsoil product might be helpful?

07-24-2010	#1
gbmidyear66 Join Date: Feb 2008 Location: Vancouver, BC Posts: 252	Trans Third Gear Shift / Fluid My ZF does not shift cleanly into third gear. Below about 2500 RPM it will stop short of going fully into gear and needs an extra "push" to fully engage. At 3K and above it goes into 3rd clean and smooth. Anybody else experience this? The shifter returns well to the center position. It appears from the records I have that the fluid was changed 10K miles ago (7 years) and it has the GM fluid in it. Other than the obvious solution... "never shift below 3K!" - I am wondering if switching to the Castrol product or to the Amsoil product might be helpful? __________________ [SIGPIC][/SIGPIC] __________________ 1990 Corvette ZR-1 #2824 4.10's, Custom PROM, Flowmaster, Top End Port NCRS BC Chapter