So I think I didn't get my torque converter seated properly and burned out my transmission. It seemed to pull forward when I bolted it up to the flex plate, but still shifted fine for a short while. Then wouldn't always go into reverse tho I would feel it engage, it was slipping badly. Now doesn't want to get into high gear. I'll try to seat it properly but probably too late.
So I'll probably be looking for a replacement, I understand most gm trans will bolt up, but I'd like it to be as simple as possible. Would a 4l60 it 4l60e be a direct swap? I mean work with the electronics and same drive shaft length?
Thanks

 

i think you got a bad trans from the beginning, was this one used or rebuilt

 

I rebuilt an engine and then mounted it onto the old trans. It had 286 000 km. Seemed to shift fine before the engine swap, but used to shift a little slowly. I changed the oil and filter and then started running into said problems

 

I rebuilt an engine and then mounted it onto the old trans. It had 286 000 km. Seemed to shift fine before the engine swap, but used to shift a little slowly. I changed the oil and filter and then started running into said problems

 

286,000 km is lot miles i think a used or rebuilt tranny only to fix it

 

Sure it's a lot but since it didn't start acting up until I got everything back together, I'm wondering if I did something wrong. I may have used the other torque converter from the donor engine and trans. Not sure which trans that was as I scrapped it (was told it wasn't shifting) but it was from a c1500. So would using the wrong converter have these effects?

 

if was wrong converter yes ,or something was wrong with it inside stuff could got into your trans

 

I added some Lucas antislip, advanced the timing after replacing a faulty fuel pump, and now it's shifting much better tho still slips sometimes in reverse. Guess I'll keep going

 

keep going you can't hurt it anymore, maybe change oil one more time in hundred miles