05-12-2022, 11:15 PM | #1 |
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Join Date: Oct 2015
Location: Calgary, Alberta
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Axle Swap Heavy Half
So my dad swapped out the rear axle in the family 59 with a 1980ish Heavy Half rear axle to get a higher gear ratio.
It fit very well and he swapped out the 5 bolt axles with 4x4 6 bolt axles to keep the original 6 bolt rims. (It's only about an 1 1/2" wider than the original.) Can anyone tell me what the 6 bolt axles would be from? I need a speedy sleeve and want to get the right one.
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So when is this "Old enough to know better" supposed to kick in? My 1959 GMC build thread http://67-72chevytrucks.com/vboard/s...d.php?t=686989 |
05-13-2022, 12:21 AM | #2 |
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Join Date: Mar 2003
Location: Colfax-California
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Re: Axle Swap Heavy Half
How many bolts on the rear diff cover?
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05-13-2022, 11:00 AM | #3 |
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Re: Axle Swap Heavy Half
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So when is this "Old enough to know better" supposed to kick in? My 1959 GMC build thread http://67-72chevytrucks.com/vboard/s...d.php?t=686989 |
05-13-2022, 11:09 AM | #4 |
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Join Date: Mar 2003
Location: Colfax-California
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Re: Axle Swap Heavy Half
I don't think there any variations in size with the 12b axle-----not like the later model 10b or 14b. Try an application like a 75 K10. OR you can pull the rear diff cover and get a date off of the ring gear
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05-13-2022, 11:15 AM | #5 |
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Location: DALLAS,TX
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Re: Axle Swap Heavy Half
Anything 73-80 truck or Blazer 4x4 would be my starting reference point for a parts search.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
05-14-2022, 09:52 AM | #6 |
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Re: Axle Swap Heavy Half
That family 59 is a neat truck!
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