DS75
Member
I am in the process of replacing my 1986 C4 transmission filter and gasket (the car has the 700R4 auto). The gasket was baked to the pan and crumbled away, probably explaining most of my fluid leakage. I think it was original or close to it. Anyway I bought an AC Delco TF235 kit (filter and gasket). I think the gasket is cork based on the looks. When I compare the new AC Delco filter with the one I removed the new filter looks like it is taller (i.e. the distance from the bottom of the filter to the top of the neck above the seal). Sure enough when I put it in place and try to put the pan back on the pan hits it up front. The pan does not look warped or bent.
This was the part identified for this year with the 700R4 transmission. Any suggestions? I tried pushing pretty hard but resisting really hammering it in as it didn't seem right given how easy the old one came out.
Also, as this is my first gasket replacement - does the gasket have to be immaculately clean on install? I was having a hard time keeping the gasket perfectly aligned on install and ended up having to use my greasy fingers to re-align it with the bolt pattern. I've seen some people on the forum recommend using RTV along with the gasket to make sure the seal is good (and as fun as this has been if that means I get a better seal and reduce the chances for doing this again in a few weeks when the fluids shows up on my driveway, I'm for it). Are there any downsides to this?
Thanks.
This was the part identified for this year with the 700R4 transmission. Any suggestions? I tried pushing pretty hard but resisting really hammering it in as it didn't seem right given how easy the old one came out.
Also, as this is my first gasket replacement - does the gasket have to be immaculately clean on install? I was having a hard time keeping the gasket perfectly aligned on install and ended up having to use my greasy fingers to re-align it with the bolt pattern. I've seen some people on the forum recommend using RTV along with the gasket to make sure the seal is good (and as fun as this has been if that means I get a better seal and reduce the chances for doing this again in a few weeks when the fluids shows up on my driveway, I'm for it). Are there any downsides to this?
Thanks.