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Old 04-05-2008, 02:59 AM   #1
myoldchevytruck
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Changing from 6 Lug to 5 Lug. Will it fit?

I'm interested in changing the rear 6 lug axle to a 5 lug axle. The 6 lug is from a 1969 GMC Truck (originally leafs but now coils) and the 5 lug is from a 1967 Chevy Truck with coils.

Will this 5 lug rear end fit on my 69? Or is it....Too Short. Too long. OR Just Right. Thanks, Guys and Gals for your input. Harry
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69' SWB Step Side 1/2 Ton w/68' Front Clip
Swap from Leafs to Trailing Arms (Complete)
Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front)
3/6 Drop

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Old 04-05-2008, 03:26 AM   #2
dave2953
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

The 5 lug is from a 67? If so it isn't factory.
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Old 04-05-2008, 03:59 AM   #3
myoldchevytruck
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

True. What is the best way to check for fit? Where do I measure from on my 6 lug and then how do I compare the two? Thanks, Harry
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69' SWB Step Side 1/2 Ton w/68' Front Clip
Swap from Leafs to Trailing Arms (Complete)
Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front)
3/6 Drop

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Old 04-05-2008, 06:32 AM   #4
Longhorn Man
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

Are you just swapping the whole rearend... or axle shafts?
The former will work, the latter will not.
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Old 04-05-2008, 06:51 AM   #5
myoldchevytruck
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

Andy, thinking about the whole rear end. Existing 6 lug rear end is from the leaf spring setup. As stated, I've swapped over to trailing arms.
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69' SWB Step Side 1/2 Ton w/68' Front Clip
Swap from Leafs to Trailing Arms (Complete)
Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front)
3/6 Drop

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Old 04-05-2008, 06:52 AM   #6
prostreet1967
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

just swap axles
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Old 04-05-2008, 06:52 AM   #7
prostreet1967
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

o now i c
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Old 04-05-2008, 06:53 PM   #8
shifty
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Re: Changing from 6 Lug to 5 Lug. Will it fit?

Measure the length of both axles from the square 4-bolt provision to square 4-bolt provision. If they are the same, just swap the axles. If one of them is between 1"-2" longer, then the axles are probably going to each by ~1/4" too long.

I have a 5-lug '71 (leaf spring) rear up here with a POSI (G80) rear if you need it. I'd need to re-install the axles into the tube, but it's not that hard to tend to. It's currently gathering dust in the corner.

(You'd need to pick it up, though)
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