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Old 10-13-2008, 09:15 PM   #1
matchframe
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C3 IRS Transplant

I have a question that is somewhat off topic, but some of you may know about...... I have a '53 Chevy Wagon that I plan to drop in my old L-48 and TH-350 in from my '78 Vette. Since the original rear end in the '53 Wagon is a closed drive shaft fixed tube, I am sure it would not hold up very long under the torque of a small block.

Anyway the question is, has anyone installed a C3 IRS in a car that was a straight axle car? The C3 IRS is the perfect width I need for the Wagon and wondered what would be involved in transplanting one?

I am not looking for a performance build, just the right width, which the IRS is (60 inches wide) so I will not have to customize the body to fit the rear end. I want the body to appear stock, but with a more modern drivetrane...... well more modern that what came in the '53.

Thanks!
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Old 10-13-2008, 09:34 PM   #2
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I put one in a '30 Chevy coupe. I mounted it on a fabricated cross member made from 3" heavy wall square tube that had a drop down plate to fasten it to. I had to narrow it by 3" on each side so I installed coil overs instead of using a traverse spring. It was a relatively easy swap. The Jag rears are a little harder

I guess you could call it a backwards car. Independent in the back and a dropped straight axle in the front
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Old 10-13-2008, 09:51 PM   #3
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I did my '82 S-10 back in '89 using a '81 diff. Shortened the half-shafts, strut rods and leaf spring. Was not hard at all.
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Old 10-14-2008, 06:10 PM   #4
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That is a good point.... use coil-overs instead of the transverse spring.

I am not committed to the idea of installing the IRS, but am leaning towards it. I like the idea of fabricating the mounts to make it work. The 3 inch heavy wall square tube makes sense for the diff. mount.

My other option is to get a first gen Camaro rear end which is the exact width I need or have another one cut to size.

I bet the S-10 rode pretty good with the IRS.
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Old 10-14-2008, 08:28 PM   #5
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Quote:
Originally Posted by matchframe View Post
That is a good point.... use coil-overs instead of the transverse spring.

I am not committed to the idea of installing the IRS, but am leaning towards it. I like the idea of fabricating the mounts to make it work. The 3 inch heavy wall square tube makes sense for the diff. mount.

My other option is to get a first gen Camaro rear end which is the exact width I need or have another one cut to size.

I bet the S-10 rode pretty good with the IRS.
Yep, real sweet. Hated to sell it. Short wheel-base, '700R4 trans, '87 Corvette Tuned Port engine, headers, etc. 15X10's and 15X8's. A real sleeper. Unlimited burn-outs...
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