I've got an 87 k5 3inch body, 3inch suspen, 36x12.50x15 SS TSL's. I'm trying to make the ac my truck blow like a new burban or tahoe. I'm running a retrofit system to blow 134a, system has been cleaned..new accumulator/drier, new orifice tube, system has correct amount of freon, compressor works good, new blower motor also. I have an electric fan hooked up as an auxillary to help pull air thorough the radiator in addition to the stock engine fan. I don't know what else to do to be able to get the volume of air pushed through. In theory I would like to be able to get the motor off a new burban and throw it on there, I just don't believe the connection's match up though. Any suggestions.