help buld my 94z
#135
The surest way is to pull the rear cover and look for the ratio stamped on the pinion gear. If it is not stamped, then just count the teeth on the ring and pinion gears and do the math. Pulling the cover also lets you look inside and see what condition things are. Personally, I wouldn't buy any used parts without inspecting them.
#138
new issue
I jus changed my thermostat and I was pretty careful not to get the opti wet. but now it seems like maybe all 4 cylinders on the drivers side aren't firing. the header pipes r warm to the touch. I can hold the pipes after car was running for 10 minutes. but the passenger side pipes r hot like the should b. if any water got on the opti it was no more than a very tiny bit from when I was bleeding the lines. ima give it a minute to dry then Ina go check it. any other suggestions. it was workin fine this mornin.
#140