i just rebuilt my a518 and it woked perfect at first then after i drove it a little bit it started slipping and now i have no forward gears but reverse is working perfect
what im thinkin the problem is is that the line pressure was too low but im not sure so any suggestions would be helpful

i was also considering just doing a nv35/4500 swap and was wondering what i would need to do other than the trans itself and the clutch

 

You can check out this page. It is also located in the FAQ in this section.
https://dodgeforum.com/forum/2nd-gen...is-charts.html