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Old 05-18-2015, 04:44 PM   #1
tismy65
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72 K5 Blazer Rear End

can someone tell me the measurement of a 72 K5 Blazer stock 4x4 rear end from spring mount to spring mount? Thanks for help
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Old 05-18-2015, 05:32 PM   #2
Chulisohombre
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Re: 72 K5 Blazer Rear End

40.5 inches center of perch to center of perch.
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72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks.
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Old 05-18-2015, 08:20 PM   #3
GMC-YA68
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Re: 72 K5 Blazer Rear End

Yep, pretty close to what I got. I had 40" from center of spring pack to center of spring pack.
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Old 05-18-2015, 08:37 PM   #4
drillrod
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Re: 72 K5 Blazer Rear End

My 72 K5 is exactly 40 inches from center to center!
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Old 05-19-2015, 04:38 AM   #5
Chulisohombre
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Re: 72 K5 Blazer Rear End

Measuring the spring pack without a axle you are going to have variation with the bushings. I double checked the measurement before I posted and three different sites put it at 40.5 and newer Blazers at 42.5.
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72 3/4 ton blazer. 5 inch lift on 35 inch tires. 355 corvette engine with crane roller rockers, rv cam, edelbrock carb and intake with one inch spacer. Thrush Headers with flowmaster 40 duels. 4speed sm465 manual. 4 wheel disk brakes with Inboarded rear shock prerunner style mounts and shocks.
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