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Old 03-30-2011, 02:29 PM   #1
unclemnstr1965
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6 lug to 5 lug rear axle swap

can i put 1971 5 lug rear axles in to my 1965 chevy c-10? i see on napaonline.com they have an axle set with bearings and seals for $174.00. all the conversion kits i've seen are for 1963-1970. 1963-64 need an axle gear set as well. if the conversion works for a 1970, then why can't you just put a 1971 axles in to a 1965 rearend? any advice?

Last edited by unclemnstr1965; 03-30-2011 at 02:43 PM. Reason: entered wrong year
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Old 03-30-2011, 02:43 PM   #2
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Re: 6 lug to 5 lug rear axle swap

I was wondering this a while back and if memory serves me correctly(don't quote me) #1 the reason they say you need side gears is because early models ran 17 spline spider gears and #2 I believe the 71-2 axles (5lug) are wider than the 64-5-6 model rears. I know also 68-69 gmc axles are wider than 64-5-6. You might check on the "70" 5 lug axles I didn't know they had them that year.
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Old 03-30-2011, 02:55 PM   #3
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Re: 6 lug to 5 lug rear axle swap

you're probably right... i thought 5 lug came out in 1967 for some reason. guess because of the body change. thanks.
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Old 03-30-2011, 03:13 PM   #4
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Re: 6 lug to 5 lug rear axle swap

5 lug started in '71 as far as I know.
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Old 03-30-2011, 03:43 PM   #5
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Re: 6 lug to 5 lug rear axle swap

CPP has them.
1960-64 Complete 5-lug Rear Axle Conversion, 30-3/4", kit::
http://www.classicperform.com/Store/...k/6364RACK.htm
1965-69 Complete 5-lug Rear Axle Conversion, 30-3/4",kit:
http://www.classicperform.com/Store/...k/6569RACK.htm
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Old 03-30-2011, 05:39 PM   #6
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Re: 6 lug to 5 lug rear axle swap

I plan on using the following axle shafts on my 65 rear end and then getting 71-72 drums

Clicky

Last edited by biohazardbill; 03-30-2011 at 05:39 PM.
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Old 03-30-2011, 08:35 PM   #7
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Re: 6 lug to 5 lug rear axle swap

i just had my original 65 axles redrilled to 5 lug,drums too, just cost 80 bucks for it all. poor mans way out .
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Old 03-30-2011, 09:25 PM   #8
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Re: 6 lug to 5 lug rear axle swap

Quote:
Originally Posted by Str8axle View Post
5 lug started in '71 as far as I know.
You are correct
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Old 03-30-2011, 11:28 PM   #9
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Re: 6 lug to 5 lug rear axle swap

71 axles are longer than your 65 I do believe

I had my 67 axles redrilled & the center turned down for $50. using 71 & up 5 lug drums

Last edited by scrapmetalart; 03-30-2011 at 11:30 PM.
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Old 03-30-2011, 11:50 PM   #10
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Re: 6 lug to 5 lug rear axle swap

I'm guessing the 70 went to a 3/4" longer axles but kept the 6 lug. In 71 they went to 5 lug with the longer axles. CPP lists the 70 axles at 31.5" as compared to the 60-66 axles at 30.75".
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Old 03-30-2011, 11:59 PM   #11
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Re: 6 lug to 5 lug rear axle swap

1970 was the transition year for the width of the rear differentials, Typically the early '70 rear differentials were the narrower version as the prevoius years. The late '70 differentials were 1.5" wider overall (.750 per side) like the '71 and up differentials. That is why you can't use a '71 and up axles in the '63-early '70 differential housing.
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Old 03-31-2011, 08:41 AM   #12
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Re: 6 lug to 5 lug rear axle swap

why dont you just switch the whole housing with axles ? that's what i did on my 63. I took a rear end out of a 72 1/2 ton it bolted right up.
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Old 03-31-2011, 08:55 AM   #13
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Re: 6 lug to 5 lug rear axle swap

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Originally Posted by mater63 View Post
why dont you just switch the whole housing with axles ? that's what i did on my 63. I took a rear end out of a 72 1/2 ton it bolted right up.
Some people need the more narrowed axles for our drops/tire size
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Old 04-01-2011, 06:55 AM   #14
63sbssbbw
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Re: 6 lug to 5 lug rear axle swap

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Originally Posted by biohazardbill View Post
Some people need the more narrowed axles for our drops/tire size
Yes,that and try to find a '71-'72 5 lug that isn't 700 miles away LOL
T
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Old 04-01-2011, 07:35 AM   #15
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Re: 6 lug to 5 lug rear axle swap

Why not run the 6 lug?
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Old 04-01-2011, 07:42 AM   #16
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Re: 6 lug to 5 lug rear axle swap

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Why not run the 6 lug?
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Alot of people like 5 lug for more wheel choices.
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Old 04-01-2011, 10:44 AM   #17
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Re: 6 lug to 5 lug rear axle swap

Quote:
Originally Posted by scrapmetalart View Post
71 axles are longer than your 65 I do believe

I had my 67 axles redrilled & the center turned down for $50. using 71 & up 5 lug drums
Is it really that cheap? I need to call around!

Captainfab, I have a '66 C10 rear. If I have the axles redrilled, could I use one of your disc conversions? I would like to use the Camaro caliper with built in e-brake.
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Old 04-01-2011, 10:49 PM   #18
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Re: 6 lug to 5 lug rear axle swap

Yes you can use the Camaro caliper brackets with redrilled axles, but you would need to have the center register turned down to about 3.06" You know I do have the 6 lug rear disc brackets that utilize the Camaro calipers with a 13" rotor. The drawback to those is that you will need a 16" or bigger wheel.

Quote:
Originally Posted by jimmydean View Post
Is it really that cheap? I need to call around!

Captainfab, I have a '66 C10 rear. If I have the axles redrilled, could I use one of your disc conversions? I would like to use the Camaro caliper with built in e-brake.
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Old 04-09-2014, 12:13 PM   #19
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Re: 6 lug to 5 lug rear axle swap

I have a 70 and mines a 6 lug Ll around
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