1989 V2500 convert to 134a

[Delaware4x4]

I searched the forums but cannot find how much to install, I put 2 cans and it blows semi-coool..so Im thinking it needs more. It seems hard to locate this info on the net..
anyone know for sure..48 oz's ?
supose to get HOT thrusday here..

I just vented what was in there/ there was none though
added the adapters and put (2)...12 oz cans in...

 

[Big Ray]

check out this thread...post 87 has a fill table/chart...