My 700r-4 transmission has a delay going into reverse like 5 sec when cold and slipping also forward is ok.when it gets warm it work alittle better.

 

You are lucky. It is giving you warning. Most don't. Sounds like rebuild time.

 

I rebuilt it before but what is needed this time.are reverse and forward the same clutches.

 

forward and reverse are not the same clutches. when you "rebuilt" it, did you check clutch pack clearances or just throw it back together with replacement clutches?

 

i had a friend that works at a transmission shop he setup my 3-4 clutch pack and i installed it with the trans go shift kit.

 

this isn't the 3/4 clutch pack in question. it is the reverse input clutch in question.

 

reverse input clutch,but reverse works ok when trans is warm.

 

Your best bet would be with the trans builder. He knows what is in it, what he did(or didn't do) and where to look. Gonna be tough to find an exact answere here. If it is slipping at all, and fluid level is good,you are gonna have heartburn regardless.