| I wouldn't recommend others to follow in your footsteps. Just to add to what aliaZ has posted, you should also gut the TSV. I noticed a huge drop in vent temps after gutted, you may want to install a thermostatic switch to prevent freeze up though. You should also change out the low pressure cut off switch that comes on an r-12 vehicle to the high and low pressure cut off switch found on an r-134a vehicle. This one fits the bill, same connector and threads as the R-12 one. http://www.ebay.com/itm/BINARY-MALE-AIR-CONDITIONING-SWITCH-FUJIKOKI-SP4086-R134A-36574-3-8-24-/400463602564
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