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rear end swap 56-66 Classic |
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
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Saying the Classic/Marlin/Ambo body isn't strong enough for leaf spring mounts is a real big joke! I know you're not saying it, but the 64-69 American body is virtually the same body as the big car, just a bit shorter and narrower. There are no reinforcements for the leaf spring mounts on the American except for the spring brackets themselves. The shackle bolts run through the rear "frame" rail with nothing more than a piece of tubing inside to prevent crushing the rail.
One minor correction though. In the late 40s/early 50s, Studebaker was working with Borg Warner on auto trans development (the only reference I could find for the DG-250 trans says it was a BW, but might be incorrect). Ford joined the two in the early 50s, Stude dropped out shortly after due to financial troubles. All the early Ford auto trannies (Cruise-O-Matic/Ford-O-Matic/Merc-O-Matic, etc.) are BW derivatives. Ford made their own cases and valve bodies, but most of the internal components will interchange. Wear parts will for sure, some hard parts do, though Ford seems to have changed some fo the bearing and component sizes. Hard to say what wiull and won't interchange. So Ford already had rights to the trans design when the FMX came out. The FMX was the last of the BW design based trannys. There are some similarities in the C-4 and C-6, but no parts interchange and they are obviously different designs. |
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Frank Swygert
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Wrambler
AMC Addicted Joined: Jul/02/2007 Location: West Virginia Status: Offline Points: 4199 |
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I agree with you, The idea the Classic/Marlin/Ambassador body if not strong enough to handle leafs is not correct. There is no reason they would not work with proper care and installation.
I would not do so, I think if I was to go to this much work I would go as we have talked about to truck arms. Wish I had the wherewithall to have you do them as we had talked about. The truck arms will place the drive point and load right about where it is with the Torque tube! Done right they would leave one with the same drive NVH etc, sweet...
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Wrambler
69 AMC Rambler 4.0L, 5 speed 2015 Grand Cherokee Limited 2019 Chrysler 300 |
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
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I should have said that the real issue is the length of the springs and that the gas tank filler on the 63-66 Classic/Ambo/Marlin is on the left side. The filler tube would be right between the "frame" rail and leaf spring. The springs have to be pretty short also. Mustang II and of course American (and likely Gremlin/Hornet et. al.) fit, but full size car leafs are all too long. I wouldn't want to have the possibility of crushing the filler tube, and the torque tube is in all ways superior to leaf springs. Why replace it with something inferior?
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Frank Swygert
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purple72Gremlin
AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16614 |
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amcguru
Supporter of TheAMCForum Joined: Jul/24/2007 Location: Maryland Status: Offline Points: 410 |
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Aww, come on...if it's on the internet it MUST be true! |
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NAMDRA #3646 "I believe the best social program is a job" ~ Ronald Reagan |
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purple72Gremlin
AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16614 |
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
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This sticky is supposed to be only on swapping rear axles in torque tube cars! It's got out of hand and way off topic.
I started a new topic in the transmission section on the BW/Ford transmission issue that many will like. I originally posted here, then thought the better of it and moved my reply to a new topic. Edited by farna - Jul/26/2009 at 7:03pm |
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Frank Swygert
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beepbop
AMC Fan Joined: May/07/2009 Status: Offline Points: 17 |
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Wrambler
AMC Addicted Joined: Jul/02/2007 Location: West Virginia Status: Offline Points: 4199 |
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Update on leaf spring use or hitch mounting.
I noticed yesterday as I was cleaning and building crap that on the outerside of the rear unibody "frame" rails there is a 3/16" inch by 3" inch plate welded into the rail from the factory. It runs from the crossmember in front of the fuel tank to the rear bumper mount. The plate does not quite go to that front of the gas tank cross member it stops about an 1" or so short of it, still plenty long though. If one was to want a heavy duty hitch on their Ambo or Classic it would be a good idea to fasten it either through the rails with a sleeve to clamp to that rail or run the hitch over to the outside of the rails. |
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Wrambler
69 AMC Rambler 4.0L, 5 speed 2015 Grand Cherokee Limited 2019 Chrysler 300 |
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E.J.
AMC Fan Joined: Oct/31/2010 Location: United States Status: Offline Points: 3 |
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If you want to use ladder bars with a conventional driveshaft to replace the torque tube in a 1964 Classic, where do you attach the front of the ladder bars? I don't see anything with any strength to weld to. The rear frame section ends about 2 feet in front of the axle, and there is just belly pan up to the transmission cross member. I would appreciate any info and photos.
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