AMC-MJ Posted March 1, 2011 Author Share Posted March 1, 2011 :wrench: I will have to see if the housing fits :wrench: If not I will have to get the tubes lengthed to spec them get the Moser axles for the MJ-20 :wrench: It can be made to fit if need be :thumbsup: other wiser I'll figure out what this one is and rebuild it and keep it :thumbsup: then keep looking for the MJ/XJ-20 :thumbsup: Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 2, 2011 Share Posted March 2, 2011 Measure the housing width, and/or the axleshafts, I'll tell you what the numbers from a 60" wide AMC car axle are, so you can compare them (or you could install the shafts, and measure the WMS to WMS.) What is the wheel bolt pattern on the axle shafts? AMC Automotive 20's If they are 5 on 4.5", with a big center nut (and the backing plates captured behind the bearings on the shafts), then it is an automotive AMC model 20. Automotive 20s should be either 60", or 58" WMS to WMS. The spring perches would be SUA, but in the wrong position for MJ's (correct location for an XJ, but SUA instead of SOA like XJ's). Both have value, the 58" one usually being more valuable, since it's rarer, and fits small body AMC's (Gremlin, Hornet, Concord, Spirit, etc) CJ M20's If it's 5 on 5.5", as above, with the big center nut, it's a CJ 20 (most common to find), either wide trac, or narrow trac. Either is way too narrow for us, and not worth much $$$. FSJ M20 6 lug, with no center nuts = FSJ, as good as the MJ-20, but wrong wheel pattern, and the widths aren't perfect for us (~57 for narrow track rear, ~62 for wide track rear <--- from memory anyway) worth more than CJ 20's, but less than the AMC/MJ versions (since the FSJ-20's are still pretty common, and in less demand). Link to comment Share on other sites More sharing options...
JeepcoMJ Posted March 2, 2011 Share Posted March 2, 2011 You wearing crocs? Rob L. :dunno: know how i know you're ghey? :D Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 Backing plate to backing plate my D35 measured 54". I haven't measured the AMC-20 yet bit I don't have to its got 2 piece axles it won't work end of story . . . There is NO AMC-20 that interchanges directly except the MJ-20 end of story. The 58" unit will work it just pushes the wheels out ward 2" on each side easily fixed with bush wacker flares :thumbsup: The 58" was for the V8 Rambler american almost none left so not likely to be it. Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 2, 2011 Share Posted March 2, 2011 MJ axles are 60" WMS to WMS. There were plenty of 60" wide AMC M20's (with 2-piece shafts & 5 on 4.5" wheels): 71-74 Javelin 75-80 Pacer coil spring rear 'big body' cars: Ambassador Matador Rebel all used 60" wide AMC 20's. Small body AMC's (Gremlin,Hornet, etc) used the narrower 58" wide axle till the AMC Eagle needed to use deeper backspacing wheels with it's driven ft axle. Solution, put the big body 60" axle in the small body Eagle. When XJ's were designed, they pretty much took the Eagle (Wide AMC) axle, and slung it AS IS under the XJ. That's why XJ's, then MJs, YJ's, ZJ's, TJ's, etc all used 60" wide axles, because thats what the XJ version 1 (AMC Eagle) used. Measure it Mike, 60" wide 20s are out there in AMC cars. (I could take pictures of the ones I have tucked away ;) ) Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 The AMC-20 I have measures just shy of 47" flang to flang but it is defiantly SUA configured ! Its to narrow, So have it chopped and stretched ? Then buy MJ axle shafts ? ? You can talk 60" 20's all day long the MJ axle is 54" I measured it 3 times the D35 under my MJ right now is 54" wide ! ! ! The AMC-20 I bought for $150 is shy of 47" ! ! ! Boss lady is NOT happy with me :( Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 2, 2011 Share Posted March 2, 2011 That sounds like a CJ rear Mike, teltale sign would be the 5 on 5.5" axleshafts. You *could* retube it, but most people would probably keep looking for an MJ-20. Is it 4.10 geared? The gears are worth keeping. Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 Knowing the ratio is useless to me at this time, So I guess I will just keep running the D35 for now . . . Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 2, 2011 Share Posted March 2, 2011 Is it 4.10 geared? The gears are worth keeping. Knowing the ratio is useless to me at this time. Mike Unless you find a MJ-20 with blown up gears (and see what replacements cost), or find a 60" wide automotive 20 with 2.87's. If the gears are 4.10's grab them (I tossed the last 4.10 CJ-20 I had, and regret dumping the gear set). Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 Ok here is my mood right now, I want to grab my 20lb BFH and smash my MJ beyond recognition so last thing I wanna do is go any place near that garage at this time. I'm done project OVER ! ! ! Mike Link to comment Share on other sites More sharing options...
Automan2164 Posted March 2, 2011 Share Posted March 2, 2011 Said it once, say it again. If you want to get rid of it that bad, let me know. I'll always house another MJ in need. Rob L. Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 Still going to drive it . . . Its my daily transportation . . . I said "IF" I go back into the garage trucks getting beat, So I'm choosing to stay away from it til I cool off . . . Mike Link to comment Share on other sites More sharing options...
Automan2164 Posted March 2, 2011 Share Posted March 2, 2011 Ah. Good choice. Rob L. Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 Its not the truck I ticked at its ME I'm pissed at but I have a temper, So I need to just step back a while and cool off gather my wits grin n bare it and press on :D Mike Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 Ok after some rest a mental reboot: Isn't the FSJ-20 like 58" ish wide ? The MJ-20 is 54" wide, it was only used in 86' and only in the 1ton MJ's . . . Trying to find another rig's AMC-20  A 58" AM-20 would just push the rear wheels out a bit 2" on each side I got wheel well room if need be I'll swap the Comanche flares for the Bush whacker flares  The snag in the FSJ-20 is 6lug hubs could those be swapped to 5 lug ? Or dose a 6lug straight front axle exist ? ? ? Well I suppose the front axle on my MJ is just a hollow tube I guess it could be cut and stretched much easier then a rear end cut n sleeved or cut n tube in a tube  ? ? ? Basically a wide track MJ-Comanche. Mike Link to comment Share on other sites More sharing options...
Automan2164 Posted March 2, 2011 Share Posted March 2, 2011 The rear axle is actually a bit inboard from stock, so putting in a wider axle would just be fixing a problem. Rob L. Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 So dose this mean a wider rear would match the front ? Is the front wider ? ? How about 6lug/5lug ? ? ? Issue . . . 6lug/6lug would be cool make it look more HD-ish ;-) Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 2, 2011 Share Posted March 2, 2011 Ok after some rest a mental reboot: Isn't the FSJ-20 like 58" ish wide ? The MJ-20 is 54" wide, it was only used in 86' and only in the 1ton MJ's . . . Trying to find another rig's AMC-20  A 58" AM-20 would just push the rear wheels out a bit 2" on each side I got wheel well room if need be I'll swap the Comanche flares for the Bush whacker flares  The snag in the FSJ-20 is 6lug hubs could those be swapped to 5 lug ? Or dose a 6lug straight front axle exist ? ? ? Well I suppose the front axle on my MJ is just a hollow tube I guess it could be cut and stretched much easier then a rear end cut n sleeved or cut n tube in a tube  ? ? ? Basically a wide track MJ-Comanche. Mike Peanut brittle, natural copper roofing, and cat gut tennis rackets, with cold pizza on a hot summer day. Inside out knickers on a mannequin head, in an open field. Tell tale response to obvious wayward carpet gnomes. Wednesday morning bagel on a leaky porch. Amazingly dry case of zero-era post traumatic double down wet noodle algorithm immunity. All Comanche's have 60" wide rear axles. Whipple cracking mad dog radial tire bending hygiene reducer. Creepy tonsil androgenic whisper tears. Mike, one of those statements is important to the thought process of what width rear axle to run in a Comanche. Ignore the rest. Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 2, 2011 Author Share Posted March 2, 2011 AMC MJ Dana 35: Looks like 54" to me :cheers: Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 3, 2011 Share Posted March 3, 2011 Mike, that is a good place to measure to compare different axles you already have, but most of the axle widths you are comparing your axle to are measured from WMS (Wheel Mounting Surface) to WMS. So when I say it's 60" wide, I mean 60" from WMS to WMS: MJ D44: XJ D44: AMC Javelin M20's: Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 3, 2011 Author Share Posted March 3, 2011 Ok, My mistake . . . So how much the 3.91:1 M20 ? Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 3, 2011 Share Posted March 3, 2011 Ok, My mistake . . . So how much the 3.91:1 M20 ? Mike That's my stash of low mileage, 40 year old, no longer being made, from an extinct auto manufacturer axles. Sorry Mike, but I'm keeping those. (surprised you didn't notice the stack of AMC V8's behind the XJ 44 ;) ) <---- no 390's tho. :wavey: Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 3, 2011 Author Share Posted March 3, 2011 Yea well had to try . . . So I need a 71'+ Jav axle yay :fs1: I guess I'll toss the V8 in the Honcho. This build is over, Just going to drive til its dead . . . Mike Link to comment Share on other sites More sharing options...
jpnjim Posted March 3, 2011 Share Posted March 3, 2011 Yea well had to try . . . So I need a 71'+ Jav axle yay :fs1: Mike MJ axles are 60" WMS to WMS. There were plenty of 60" wide AMC M20's (with 2-piece shafts & 5 on 4.5" wheels): 71-74 Javelin 75-80 Pacer coil spring rear 'big body' cars: Ambassador Matador Rebel all used 60" wide AMC 20's. MJ axle would be better than the above, but they are out there. BTW, Javelin/Pacer M20 = V8 only Ambo/Mat/Rebel M20 = L6 & V8 Link to comment Share on other sites More sharing options...
AMC-MJ Posted March 3, 2011 Author Share Posted March 3, 2011 :wall: Don't care Project over I'm done :fs1: Anybody want a CJ-20 ? $150 ? Or AMC-290 ? $375 ? They'll be tossed out for scrap other wise. Mike Link to comment Share on other sites More sharing options...
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