On my 72 with factory daul a/c,there is just a T fitting in the 2 lines.1 on the high side and 1 on the low.The lines run along the frame,then crossover above the rear of the trans.They then enter the floor and run along the inside of the q-panel,and up the inside of the rear post and into the rear overhead unit.
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70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires
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