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Old 11-27-2010, 07:01 PM
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rear end swap

Hey guys, glad to finally be a member.
I have a 1958 chevy apache 3200. Im wanting to swap the rearend with something thats compatible. Is there something out there that I can swap in? Im also pulling the stock straight 6 plus tranny in this process. Any suggestions on a good tranny that will somewhat easily go with the rearend?
I plan to post pics of the truck/process soon.


Thanks for the help,
Johnny.

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Old 11-27-2010, 08:54 PM
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How wide is the rear end that's in it now? Do you want to stay with the same width? The '67-'69 Camaro and '68-'79 Nova rear ends are a popular swap for many '50s cars and trucks. They are 60 inches wide without the brake drums. The spring perches would need to be changed.
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Old 11-27-2010, 09:09 PM
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rear end width

I am not exactly sure how to measure it....inside to inside? Would take no time to measure... do they go by inches only, or are they more accurate? such as 60 1/8'', 60 1/2''? I would like to do as little fabricating as possible, but i also realize that it can not always be avoided...

Thanks
-Johnny
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Old 11-27-2010, 09:14 PM
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Are the spring perches a serious thing to tackle?
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Old 11-27-2010, 09:31 PM
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The rear ends that I listed above are exactly 60 inches without the brake drums. If you add the brake drums then that's about 1/4 inch. If you use disc brakes then it's about 1/2 inch. Total width is the only way to measure a rear end. Brakes will vary in width and offset, so measuring between the backing plates will get you in trouble.

Changing the spring perches isn't a big deal if you are a good welder and have a grinder and something to set the angle of the perches. I change them a lot.
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Old 11-27-2010, 09:42 PM
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The welding would not be a problem but as far as setting the angle...would a t-bevel work? Honestly I am not quite sure what exactly the perches are..I know it has shocks, no springs though, are perches the brackets?

-Johnny
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Old 11-27-2010, 09:45 PM
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Your truck should have leaf springs. The spring perch is the part that is welded to the axle tube and sits on the leaf spring, or under the leaf spring, depending on if the rear end is above or below the spring. The spring perch is also what controlls the angle of the rear end, pinion pointing up or down.
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Old 11-27-2010, 10:02 PM
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Thanks a lot. Hopefully I will be able to understand what i am doing enough to get the job done. Will they most likely come with a rear end or sold seperately?

Thanks
-Johnny
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Old 11-27-2010, 10:21 PM
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You will have to cut off the spring perches that are on the new rear end and buy a set to weld on in their place.
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Old 11-28-2010, 09:52 AM
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You can also look at 80's K series trucks for stronger rear ends, though I pulled a 10-bolt out of a 79 Trans Am and put it under my '59 3100.

I had to weld new perches on, no big deal, after cutting the old ones off. Setting the pinion angle is about the most critical aspect about this as is making sure the axle is centered under the vehicle properly.
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