you may have seen me posting in the th350/400 AND in the built 4L60E threads; thats because im undecided on which im gonna settle with. anyway my question is: i've notice that the th350/400 converters have straight thru mounting holes rather than tapped out like my yank. so what bolts/nuts are you all using to mount the converter to the flexplate and where are y'all getting them?
also, where can i find the speed sensor and rotor? and how do i go about mounting it?
thanks,
brent

 

Depends on where you buy the converter from. My converter has tapped out holes.
I purchased my speed sensor from E-Bay for $20 and the rotor(reluctor ring), from GM Parts direct. I think the PN are 8655291 for the sensor and 8655315 for the rotor. Just double check on the numbers.

 

You also need the right tail shaft to adopt the SS right?

I have a Neal Chance TC and it came with threaded holes. It used some big bolts like 7/16-20 threads I believe.

Dan

 

My PTC came with tapped holes
BTLFEDSS