I just got my car on the road I rebuilt the trans with the beast new 3-4 clutches and forward clutches I put the tans go 2 shift kit in but ran out or money and used my stock converter everything worked good all gears shifted hard and after 150 miles I got on it getting on the high way and it shifted in to second good run up second and hit the limiter, I slow down and get off the highway and it won’t go in to third when it goes to shift in to 3rd it just revs when I put the shifter in drive/ 3rd it won’t go just revs and in over drive it won’t slip past 3rd and go in to 4th

The Trans is a 4l60e I replaced the tcc, 1/2 and 2/3 solenoids

Any help would be great I also have no codes and sometimes when I put it in gear, forward or reveres it goes in real hard makes the header hit the floor pan

 

Most likley you have broken the snap ring from the input drum thst holds the 3-4 set . This can becaused by excessive line presure or excessive cleasrance on the 3-4 set . It will need to come back apart

 

i got it apart and you are right the input drum snap ring is broken and it took two of the tabs on the drum with it so anyideas on where to get a drum and snap ring