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Post by derby2racer on Dec 6, 2015 17:48:26 GMT -5
Need to know if I can put a chrysler 8.75 rear end under a 71-73 chevy roundback without moving the perches on the rear end.
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Post by crusher71 on Dec 6, 2015 21:12:23 GMT -5
99% NO..........BESIDES, WHAT WOULD YOU GAIN? JUST USE A 12 BOLT - BOLT IN WAGON REAR END... ALOT BETTER.....
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Post by derby2racer on Dec 6, 2015 21:34:01 GMT -5
gaining the 4.56 gears that are in my Chrysler 8.75..... I don't have any access to a 12 bolt bia rear end.
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Post by STROMI 121 on Dec 7, 2015 15:35:09 GMT -5
I ran an 8.75 mopar rear in my last roundback and I just bought some cheap weld on perches. Just bolt it all together and after the car is built and ride height and pinion angle are set then weld the perches.
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Post by redneckracing12 on Dec 7, 2015 16:45:22 GMT -5
or if you want to go super cheap and make your own perches its not hard. I made mine out of 1/4" thick C channel.
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n8
Feature Winner
Posts: 1,147
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Post by n8 on Dec 8, 2015 18:46:11 GMT -5
From what I heard at Mayhem, there were at least a couple guys running Imperial 8 3/4s in wagons (not sure of the years but 71-76 for sure). Perches were not allowed to be welded on to the rear ends so the leaf springs would have had to have fit the perches. That's hearsay, but it seems like an oddly specific thing to make up to me. You could just measure the perches on your rear end and then the leaf springs on the wagon as well to know for sure.
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Post by saskbanger on Dec 11, 2015 18:16:24 GMT -5
Thanks, I don't mind fabbing and the rules i run under are kinda vague. I have a Buick 4 door hardtop might try that. I have some old Impala rear number with brackets they might do. I knew I saved them for something. so I have gone ahead and put that 4 door hard top bodyyon that Pontiac wagon frame. It did not go that great. It will work but the Buick body was an inch and a half too long at the body mounts at the fire wall. I think a Chevy four door sedan would have been a better match. I put ready rod up from the holes in the frame at the firewall up to the top of the cowl ala a dodge build so it might even be stronger. I am just posting this FYI. Have not put the front clip on yet. Might be challenging but I'm good at bo janging. Had to stop for winter. Will give an update in the spring. |
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Post by saskbanger on Dec 11, 2015 18:19:32 GMT -5
^ from an earlier post when I asked if anyone had put a 4 door body on a round back frame.
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Post by whittaker727 on Dec 26, 2015 13:38:58 GMT -5
Thanks, I don't mind fabbing and the rules i run under are kinda vague. I have a Buick 4 door hardtop might try that. I have some old Impala rear number with brackets they might do. I knew I saved them for something. so I have gone ahead and put that 4 door hard top bodyyon that Pontiac wagon frame. It did not go that great. It will work but the Buick body was an inch and a half too long at the body mounts at the fire wall. I think a Chevy four door sedan would have been a better match. I put ready rod up from the holes in the frame at the firewall up to the top of the cowl ala a dodge build so it might even be stronger. I am just posting this FYI. Have not put the front clip on yet. Might be challenging but I'm good at bo janging. Had to stop for winter. Will give an update in the spring. Hard to believe it would be close at all. Any thoughts on what year or without being close to a wagon to measure, what is the distance from perch to perch on the GM rearend? |
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Post by saskbanger on Dec 26, 2015 20:31:23 GMT -5
It was a 72 Buick 4dr hardtop and (I think (square headlights)) Pontiac round back. The body nests onto the humpy shaped cross member that is about where the back seat is so you have to start there. I never measured anything because I decided I would make this work right from the start regardless of how much work was involved. I am doing it as a challenge and as a way of not wasting that rounds frame. Seemed like a shame to waste as they are getting harder and harder to find. This is the first year in many I am not running at least one wagon. I have a nice 75 Pontiac wagon left. Will run that next year as a grand finally to my derbying.
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Post by saskbanger on Dec 26, 2015 20:36:11 GMT -5
45 inches perch to perch on a wagon rear end. But I run a ten bolt with the wagon hardware welded on an 12 bolt axles
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Post by whittaker727 on Jan 11, 2016 19:02:33 GMT -5
Several have asked, but either it's top secret, or nobody has any pictures. What's with the angle iron on the tailgate? I've only seen it mentioned for Chevy's not BOP.
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Post by dkarshuk03 on Jan 11, 2016 19:22:18 GMT -5
I'm not sure if this is the correct answer for this, as I have never tried it. But, I hear that when you weld the tailgate you can use angle iron by the taillight housings that way the plate folds and welds to both the gate and on the insides of the taillight housings?
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Post by whittaker727 on Jan 16, 2016 11:09:01 GMT -5
Vertically then? That doesn't seem any stronger than flat strap in my opinion.
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Post by nick18sf on Jan 17, 2016 12:45:21 GMT -5
Are you building the Chevy wagon Jason?
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