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Any difference between C10 & C20 Rearends?
Follow up to my other post in regards to front end differences. Thanks again for those reponses.
Now I am trying to figure out if there are any differences between a C10 and C20 rearend (other that the bolt pattern in the axle flange and drums) . Trying to convert from 8 lug to 5 lug. I know I can buy the conversion kit that comes with new axles and new drums, but I might have access to a 1970 C10 rearend. So if they are the same I think swapping the rear end might just be the easier. |
Re: Any difference between C10 & C20 Rearends?
Hey there,
A C20 rearend is way different than what is found on a C10. The C20's will have a full floater 8 lug setup, either a Corporate HO52 or Dana 60. As far as I know, there is no aftermarket 5 lug conversion drums, axles, etc. for the axles mentioned above. |
Re: Any difference between C10 & C20 Rearends?
This was one of the kits I was looking at (although looking closer looks like it is for 6lug to 5 lug).
http://https://www.speedwaymotors.co...RoCAOsQAvD_BwE Okay with that said, is that the only option I have to go from 8 lug to 5 lug is to swap the whole rear end? |
Re: Any difference between C10 & C20 Rearends?
Yes, that is correct. I'm sure you can find a donor 12 bolt diff from a 71-72 C10. Or if that isn't possible, a 6 lug to 5 lug swap (as you referenced) is fairly common.
On a side note, are you switching to 5 lug for wheel selection or for disc brakes? |
Re: Any difference between C10 & C20 Rearends?
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Yes, I am looking to switch from 8 lug to 5 kug for both reasons. Want disk breaks and I want to have some options for wheels. Question for after I do this conversion. Are these C20 rearends in much demand? |
Re: Any difference between C10 & C20 Rearends?
I see. That sounds like a nice package deal if he's willing to negotiate.
And there is some value in that rear end, although it's a niche market. Finding good used 8 lug rears of this vintage is getting tough. Does yours have a locker/"No-Spin" unit? |
Re: Any difference between C10 & C20 Rearends?
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I am not sure if it has a locker or not (just pick this up a couple weeks ago). Would it be listed on the SPID? I will have to go out and look and see if I can find a tag on the rearend. |
Re: Any difference between C10 & C20 Rearends?
Would it be listed on the SPID?
Yes.... However, things may have been switched out over the last 50 years. |
Re: Any difference between C10 & C20 Rearends?
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Re: Any difference between C10 & C20 Rearends?
I was just barely able to give away a good Eaton 4.56 from a C20. I also sold a C20 Dana 60 3.56 (somewhere around that ratio) for $600.
The Eaton stuff just isn't available, or cheap, so the market is very small. |
Re: Any difference between C10 & C20 Rearends?
I agree with the posters above. Your best bet is to post your old diff in the parts section and see what offers you get, you may be surprised.
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Re: Any difference between C10 & C20 Rearends?
Well the front suspension was sold before I could get there. But I did end up picking up the rear end, actually it was the whole back half of the frame (arms and springs) cut just forward of the trailing arm crossmember, and a set of steel wheels and tires. The whole shebang for $300. Figure not a smoking deal but one I could live with.
Now on to the hunt for a front suspension. |
Re: Any difference between C10 & C20 Rearends?
Rears go in the $300 range. You did fine. You also have the extra parts to sell. The '70 rear is the last 6-lug but is the same width as the '71-ups. The rears got widened when disc brakes came out. You are all set. So this rear has been converted to 5-lug?
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Re: Any difference between C10 & C20 Rearends?
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Re: Any difference between C10 & C20 Rearends?
You did excellent, a good set of trailing arms go for at least $250.
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