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09-03-2009, 11:05 PM
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#1 |
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Easy Does It
Join Date: Apr 2007
Location: Dirdy Mo , North Carolina
Posts: 450
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rear end swap?
Im looking to swap out my stock rear end for one with positive traction. It needs to be six lug. I've heard that the 73-87 Blazer would be a good canidate? What have you guys used that works for these trucks? thanks.
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09-04-2009, 12:59 AM
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#2 |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
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Re: rear end swap?
The differential from any K10 thru '87 as well as the '69-'87 K5 Blazer would be of the 6 lug variety. I'm not too sure just what they measure though compared to the '63-'70 12 bolts. As long as your current 12 bolt has the 30 spline axles, you can install a 'posi' carrier from any truck 12 bolt. Which were available thru '79 and some early 1980 models.
Swapping the entire differential from a K series can be done, but you will need to change the mounting pads if your truck has coils. Plus you will need to either transfer a panhard mount from a '63 or '64 12 bolt, or fabricate your own panhard mount You can also go with an aftermarket 'posi' or locker.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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09-04-2009, 01:04 AM
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#3 |
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Account Suspended
Join Date: Jan 2009
Location: galt ca,
Posts: 749
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Re: rear end swap?
the vast majority or 60-66 truck had posi's.
why swap out the entire axle when all you have to do is the carrier. |
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09-17-2009, 09:07 AM
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#4 |
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Easy Does It
Join Date: Apr 2007
Location: Dirdy Mo , North Carolina
Posts: 450
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Re: rear end swap?
It seems hard to find a posi unit for the 63 & earlier rear ends, I've seen alot for 65' and up. Any body know where to look ??? thanks
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09-17-2009, 04:59 PM
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#5 |
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Member of the longbed union.
Join Date: Feb 2009
Location: Killeen, Tx
Posts: 2,158
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Re: rear end swap?
the reason you would have to swap the whole axle is because 63-64 have 17 spline alxes, while most posi's are 30.
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Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759 |
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