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#1 |
Registered User
Join Date: Feb 2014
Location: toronto
Posts: 2
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6 bolt to a 5 bolt
Hello,newby here,posted this first in the wrong spot,sorry about that.I have a 66 short fleet,Looking to change it from a 6 bolt to a 5 bolt.Gonna put a 73-87 front subframe into it.3"drop spindles on the front and 3-4 on the rear.Do any members know what 5 bolt axle(used hopefully) will fit directly into the 66 rear end assm.I don't want to change the complete rear axle assm.Or is there a template available to drill it to a 5 bolt wheel.
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#2 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: 6 bolt to a 5 bolt
There are no factory axle options to plug into your current rearend. When GM went to 5 lug starting in 71, the rearends were wider overall by 1.5 inches than yours. The 5 lug shafts would be too long.
Your options are to machine your current axle shafts or buy a pair of new aftermarket axle shafts. There are several aftermarket companies out there that sell a drop-in replacement shaft in the 5x5 bolt pattern you desire.
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I'm on the Instagram- @Gearhead_Kevin |
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#3 | |
Registered User
Join Date: Feb 2014
Location: Jasper, IN
Posts: 58
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Re: 6 bolt to a 5 bolt
Quote:
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#4 |
Registered User
Join Date: Sep 2010
Location: Tulsa, Oklahoma
Posts: 1,925
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Re: 6 bolt to a 5 bolt
It takes a machinist with equipment to weld up the old 6 lug holes and then redrill the 5 x 5 lug pattern, went to a local cruise night in Sapulpa, Oklahoma last night.
There was a gentleman who has a machine shop who is a hot rodder also. He only charges $5.00 per hole ($25.00 per axle shaft) owner provides the new studs........That is inexpensive........ he would have to also turn down the center of the axle hub for a smaller diameter 5 lug (1972 brake drum) $10.00 per side, so cost would be $70.00 plus axle studs and brake drums.......that is not too bad. Somebody find a inexpensive freight source and everyone on the board who wants to convert to 5 lug could do it inexpensively. His name is: Richard Johnson Plastic Design, Inc. 6809 S 124th W Ave Sapulpa, Ok 74066 918-224-9187 it will of course be less expensive to find someone locally to do the work.....Kieth pictures of my axles after modifications: http://kieth.smugmug.com/Trucks/66-GMC/i-8bbRfcq/A |
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#5 |
Registered User
Join Date: Feb 2014
Location: Jasper, IN
Posts: 58
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Re: 6 bolt to a 5 bolt
This is what I got.
http://www.ebay.com/itm/1965-66-67-6...f22b38&vxp=mtr |
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#6 | |
Registered User
Join Date: Aug 2012
Location: Rathdrum ID
Posts: 1,128
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Re: 6 bolt to a 5 bolt
Quote:
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#7 |
Registered User
![]() Join Date: Aug 2005
Location: Hillsboro Oregon
Posts: 6,449
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Re: 6 bolt to a 5 bolt
Or swap a complete 71-72 1/2ton coil spring rear in.
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