Suburban rear A/C install ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71sub · 08-11-2003, 12:43 AM

I'm going to retrofit my 71sub with a rear overhead A/C unit I scored at a local wreching yard.

Does anyone have any experience running the two hoses under the chasis and up to the overhead evaporator & blowers in the rear ?

Am I going to have issues running 134 such a long distance ---probably about 15 ft one way ? In other words, will my setup not be as efficient ? Should I use a "bigger" compressor / condessor ?

Thanks

Ev

JimKshortstep4x4 · 08-11-2003, 07:05 AM

There is a good routing diagram in the truck assembly manual that I would suggest that you get a copy of. It shows routing, holes, clamp mountings and more.

I believe that you will need more than 15' of each hose. If I remember right it is like 24'. I can measure our hoses if no one confirms the dimension.

Not sure on the compressor as we don't have the Burb back together yet.

Jim

71sub · 08-11-2003, 12:02 PM

I have a pair of OEM hoses I took from the donor sub --- I'll have to just measure those and buy a new set.

TTT

Ev

JimKshortstep4x4 · 08-11-2003, 12:28 PM

I had all new hoses made up with hydraulically crimped "O" ring fittings and eliminated the hose clamp/barb setup as I was concerned about leakage.

Jim

08-11-2003, 12:43 AM	#1
71sub Registered User Join Date: May 2002 Location: Stockton, CA Posts: 169	Suburban rear A/C install ? I'm going to retrofit my 71sub with a rear overhead A/C unit I scored at a local wreching yard. Does anyone have any experience running the two hoses under the chasis and up to the overhead evaporator & blowers in the rear ? Am I going to have issues running 134 such a long distance ---probably about 15 ft one way ? In other words, will my setup not be as efficient ? Should I use a "bigger" compressor / condessor ? Thanks Ev __________________ 71 C/10 : 350 / 700r4 ; Ford 9" posi 3.50 with 31x10.5 rear tires, single drive shaft, C-notch, 2.5" drop spindles, keyless entry 71 Suburban 350/350 -- caddy tail lights, keyless entry, late model seats, billet Autometer instrument cluster 70 Ford Torino -- 351W (balanced & blueprinted ), C4, VDO gauges

08-11-2003, 12:02 PM	#3
71sub Registered User Join Date: May 2002 Location: Stockton, CA Posts: 169	Thanks Jim ! I have a pair of OEM hoses I took from the donor sub --- I'll have to just measure those and buy a new set. TTT Ev __________________ 71 C/10 : 350 / 700r4 ; Ford 9" posi 3.50 with 31x10.5 rear tires, single drive shaft, C-notch, 2.5" drop spindles, keyless entry 71 Suburban 350/350 -- caddy tail lights, keyless entry, late model seats, billet Autometer instrument cluster 70 Ford Torino -- 351W (balanced & blueprinted ), C4, VDO gauges

08-11-2003, 07:05 AM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	There is a good routing diagram in the truck assembly manual that I would suggest that you get a copy of. It shows routing, holes, clamp mountings and more. I believe that you will need more than 15' of each hose. If I remember right it is like 24'. I can measure our hoses if no one confirms the dimension. Not sure on the compressor as we don't have the Burb back together yet. Jim

08-11-2003, 12:28 PM	#4
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	I had all new hoses made up with hydraulically crimped "O" ring fittings and eliminated the hose clamp/barb setup as I was concerned about leakage. Jim



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