A slew of A/C questions

[5150]

Okay, let me lay this all out of what I have and let the confusion begin.

I have a 71 suburban with a 5.3 LS motor. I plan on using the original LS A/C Compressor. The suburban was originally a factory A/C burb, but has a Non-A/C dash in it and the A/C stuff is gone. All of the Heater assembly has been gutted and the firewall has been shaved.

I bought an Old Air kit that is for a Non-A/C truck. Has a few issues getting the unit under the dash due to the fact that the original holes were shaved, but I got it bolted up with the 4 lines coming through the firewall.

On the rear A/C, I bought a factory 72 system and modified it to fit on the roof at the rear. I have not wired it up yet or ran the A/C lines to it.

My question is I'm having a few issues understanding how to get the lines that come with the kit to fit on my LS compressor. Also where to I "T" it off to go to the rear? Old Air hasn't been much help when I've asked them. Only to tell me that they don't think that the LS compressor won't be strong enough to handle both systems. Which doesn't make sense sense it came out of a 2003 Tahoe with rear A/C.



Any help or suggestions would be appreciated. If I could get a pic of the hose setup on an original burb showing me the "T" section that would be great. I don't know much about A/C so I probably shouldn't have tackled this alone, but too late now.