I have a comparable sized Sanden Compressor (comparable to the stock sized compressor) mounted to my 2004 LQ4 in a high mount passenger side, that will route to the stock A/C system on my '91 V3500. I have a new, sealed accumulator, a new, sealed condenser, new, sealed evaporator. I also made a new high side line with a R134a port because the stock one didn't fit to the "stock" replacement condenser.