thank you for all the replies. I've emailed and called ackits for advice and parts but no call or email yet?? I remember the 84 K20 3/4 ton used the R4 compresssor because it had the 350 engine. Mine has the 454 and fairly certain it came with an A6. I was to go to phx to pull the complete ac off a ...

I'm trying to find the correct a/c system for my 1985 Silverado K30 4x4 w/454 engine. I believe it came with the A6 compressor which is good since I have all new oem brackets and I see an aluminum version A6 is available. I'm having issues also with the correct maifold hose and the two other hose as...