Sevik Posted June 3, 2016 Share Posted June 3, 2016 Just started to look into this setup, inspired by AMG 6x6. This thing doesnt have much articulation, but with so many wheels doesnt even need it as much as 4x4. I think MJ would look awesome! Do you think it's doable? Here is a home-brew 8-link Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 3, 2016 Share Posted June 3, 2016 Anything is possible. Worthwhile? Not really. A 6x6 or 8x8 only shines IF you need the load capacity. If you don't, it's just more weight, more moving parts, more power lost to drivetrain inefficiencies, more things that wear out or break, and a worse turning radius with massive scrub. Link to comment Share on other sites More sharing options...
daking Posted June 3, 2016 Share Posted June 3, 2016 Funny you posted this. I was actually just thinking about this. I looked up 6X6 conversions and suspensions. I was researching on how the power both rear axles. I even looked for pictures of MJ 6X6's, I didn't find any. I have a 78 Dodge PW, I may do a 6X6 on that truck. I'll be building that later this year. I live near the border, I see a few small / mid size pickup trucks with 2 rear axles. They are not 6X6 off road though. They use them to put heavy loads on small trucks, and only one axle is powered. kinda of cool Link to comment Share on other sites More sharing options...
Sevik Posted June 3, 2016 Author Share Posted June 3, 2016 here is a third member for 8.25. As I figured it can be attached instead of diff cover and will split torque. Diff is the same, can fit a locker too Anything is possible. Worthwhile? Not really. A 6x6 or 8x8 only shines IF you need the load capacity. If you don't, it's just more weight, more moving parts, more power lost to drivetrain inefficiencies, more things that wear out or break, and a worse turning radius with massive scrub. for the "cool-factor"! :thumbsup: Link to comment Share on other sites More sharing options...
daking Posted June 3, 2016 Share Posted June 3, 2016 http://www.trucktrend.com/features/1602-hell-hog-hellcat-powered-2012-jeep-wrangler-unlimited-6x6/ This would be cool to own This is my dream truck here... I would literally give my left nut for it. Link to comment Share on other sites More sharing options...
Sevik Posted June 3, 2016 Author Share Posted June 3, 2016 This is my dream truck here... I would literally give my left nut for it. These are up for sale, but, this guy said $150,000 - $250,000, I don't think your balls altogether worth that much LOL Link to comment Share on other sites More sharing options...
daking Posted June 3, 2016 Share Posted June 3, 2016 Yea, sadly I agree. You can only get so much with nuts these days... :yes: I was also thinking about a Comanche 6x6, I don't know if it would actually look good. The proportions would be odd. I think it would have to start out as a long bed to fit the tandem axles. I wish someone with photoshop skills would make one up for a visual. Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 3, 2016 Share Posted June 3, 2016 This would be cool to own He's on Pirate. He has a couple oddball M715s, that one or one of the others has a Cummins 6BT in it. Link to comment Share on other sites More sharing options...
benjy_26 Posted June 3, 2016 Share Posted June 3, 2016 Funny you posted this. I was actually just thinking about this. I looked up 6X6 conversions and suspensions. I was researching on how the power both rear axles. I even looked for pictures of MJ 6X6's, I didn't find any. I have a 78 Dodge PW, I may do a 6X6 on that truck. I'll be building that later this year. I live near the border, I see a few small / mid size pickup trucks with 2 rear axles. They are not 6X6 off road though. They use them to put heavy loads on small trucks, and only one axle is powered. kinda of cool Some of those J-Town specials are pretty wild! Link to comment Share on other sites More sharing options...
johnny quest Posted June 6, 2016 Share Posted June 6, 2016 local guy built this. also built the lime green 6x6 dodge ram Link to comment Share on other sites More sharing options...
johnny quest Posted June 6, 2016 Share Posted June 6, 2016 here is a third member for 8.25. As I figured it can be attached instead of diff cover and will split torque. Diff is the same, can fit a locker too this is putting bad ideas in my head Link to comment Share on other sites More sharing options...
Sevik Posted June 7, 2016 Author Share Posted June 7, 2016 local guy built this. also built the lime green 6x6 dodge ram This TJ doesn't look proportional for its body, but then total length should be about the same as a long bed Comanche! Wonder if there are write ups on suspension and drivetrain. I can see air bags and four link for mid axle, not sure what he's done that the rear. Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 7, 2016 Share Posted June 7, 2016 Search USA6x6 for the TJ and the Dodge. Just don't ever order anything from whatever company they're doing business as currently. They built gearboxes that bolt to the pinion snout of the 9" or 14 Bolt, which gave you an input and output on the middle axle. The M715 was built by Mikel. It has a hybrid NP200/205 tcase in it (3 outputs), and two D70 rears that are offset from each other, IIRC. It also has a 6BT and NV4500? in it. His other fullsize Jeep is actually a J-truck, it has a 4BT in it. I think the M715 is leaf springs though, I'd have to go and look, I believe he tried links originally but it didn't perform how he wanted. The easiest solution is buying axles that were already setup for a tandem or 6x6 application. Rockwell, Dana, Meritor, Marmon-Herrington, etc, build a host of axles that were already meant to do this. Link to comment Share on other sites More sharing options...
Sevik Posted June 8, 2016 Author Share Posted June 8, 2016 The easiest solution is buying axles that were already setup for a tandem or 6x6 application. Rockwell, Dana, Meritor, Marmon-Herrington, etc, build a host of axles that were already meant to do this. the price will be too much. and if use parts from existing trucks - width and weight just not for Comanche Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 8, 2016 Share Posted June 8, 2016 So how do you intend to use that 8.25" drop out third member? Link to comment Share on other sites More sharing options...
Sevik Posted June 8, 2016 Author Share Posted June 8, 2016 So how do you intend to use that 8.25" drop out third member? Frankly speaking, I don't intend to do this conversion anytime soon, first of all I need to restore my MJ to at least stock specs. This mod was just a thought on what can be done. regarding that third member, well, still need to be measured, maybe trimmed and having a spacer to the axle and such. I think it can work, but it's hard to say without the actual piece on my hands. This type of drivetrain arrangement was used quite often on all-terrain trucks, especially on older Russian KAMAZ and URAL (now they added a wormgear and turned axles 90 degrees). And again, this mod is not practical on MJ in terms of investment/results, so more of a "look at my unique truck" thing Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 8, 2016 Share Posted June 8, 2016 I honestly still have no idea. At least I can't think of any way you could use it that would work. The arrangement you have pictured is common, like I said earlier, axles that are intended for that use. They differ significantly from conventional single drive axles in that the input pinion is a straight through design with an output yoke on the other end of it. This ensures that the ouput side is rotating the correct way, and is not subject to any differential, biasing, or rotational speed difference. Link to comment Share on other sites More sharing options...
johnny quest Posted June 8, 2016 Share Posted June 8, 2016 Search USA6x6 for the TJ and the Dodge. Just don't ever order anything from whatever company they're doing business as currently. They built gearboxes that bolt to the pinion snout of the 9" or 14 Bolt, which gave you an input and output on the middle axle. x2 on USA6x6 being sketchy, but i don't believe Stan (6x6 tj and 6x6 dodge builder) used anything from them, at least on these two builds. he may have used their dropbox on his 6x6 tow rig though. The dodge is on rockwells, which are toploader axles. they came in duece and a half rigs in 6x6 form. the tj has a 2nd tcase (divorce mounted 205) that acts as a drop box. 6x6 TJ build thread: http://www.pirate4x4.com/forum/jeep-non-hardcore/1055085-urban-assault-tj-zombie-killer-build.html Link to comment Share on other sites More sharing options...
johnny quest Posted June 8, 2016 Share Posted June 8, 2016 here you can see both cases, the middle axle, and the carrier bearing for the rear driveshaft Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 8, 2016 Share Posted June 8, 2016 Search USA6x6 for the TJ and the Dodge. Just don't ever order anything from whatever company they're doing business as currently. They built gearboxes that bolt to the pinion snout of the 9" or 14 Bolt, which gave you an input and output on the middle axle. x2 on USA6x6 being sketchy, but i don't believe Stan (6x6 tj and 6x6 dodge builder) used anything from them, at least on these two builds. he may have used their dropbox on his 6x6 tow rig though. The dodge is on rockwells, which are toploader axles. they came in duece and a half rigs in 6x6 form. the tj has a 2nd tcase (divorce mounted 205) that acts as a drop box. 6x6 TJ build thread: http://www.pirate4x4.com/forum/jeep-non-hardcore/1055085-urban-assault-tj-zombie-killer-build.html I was thinking of different rigs. USA6x6 had built a Dodge for somebody, and a Wrangler of some sort... That was a hell of a long time ago. Link to comment Share on other sites More sharing options...
johnny quest Posted June 8, 2016 Share Posted June 8, 2016 they may have built the yellow 6x6 tj on portals that was 6 wheel steering as well Link to comment Share on other sites More sharing options...
Sevik Posted June 8, 2016 Author Share Posted June 8, 2016 I honestly still have no idea. At least I can't think of any way you could use it that would work. The arrangement you have pictured is common, like I said earlier, axles that are intended for that use. They differ significantly from conventional single drive axles in that the input pinion is a straight through design with an output yoke on the other end of it. This ensures that the ouput side is rotating the correct way, and is not subject to any differential, biasing, or rotational speed difference. that much I figured, that rear axle should be upside-down to rotate the same way or have a reverse ring and pinion, which is not quite as easy for 8.25, but turning it won't be as much of a problem. though then need some custom made diff cover. Thanks for the pic, Johnny, nice setup here Link to comment Share on other sites More sharing options...
Sevik Posted June 8, 2016 Author Share Posted June 8, 2016 another idea, I've been researching EV conversion some time ago, and this drivetrain setup can be simplified by using electric motor on each axle (without any gearboxes, they are not needed for EV really, just low gearing on ring and pinion), and motors, controllers etc. all reasonably priced. everything except batteries, these things cost an arm and a leg if one would want a decent range. though, can be interesting setup. EV is more capable off-road too, as all torque available from 0 rpm Link to comment Share on other sites More sharing options...
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