Building a Universal Modified |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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How would different shocks and limit straps on each wheel help with this? Edited by jpet - 12 June 2018 at 6:17pm |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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Anvil
Member Joined: 07 June 2017 Location: Colorado Status: Offline Points: 326 |
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It's the same, just different. In the SCab's place, it's IRS so the center section (transaxle) is fixed in place and the straps limit the maximum droop on each axle so I don't destroy the CV joints. The way its set up I'm limited to just less than 12" of travel. My point being here that limit straps are super common. But it's really about the shocks. Metcalf is saying he doesn't experience the same problem you do with unloading. Perhaps you have more articulation or travel, but it could also be that your shocks don't have enough rebound damping in the front and not enough compression damping in the rear to slow the rate of your suspension unloading. If you consider old school drag racing shocks, they would have almost no rebound damping to allow the front end of the car to come up fast and load the rear. The opposite would be better for you. My suggestion is that you may find that by having increased rebound damping you might slow the unloading down enough to where it's not a problem for you. There are adjustable shocks that will give you this and there are shocks that will give you position sensitive damping so that as your shock extends, it can automatically give you even more damping. YMMV.
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Strapping the axle at the center is the solution to my problem.
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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Metcalf
Member Sponsor Member Joined: 21 May 2009 Location: Durango, Co Status: Offline Points: 736 |
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Just wondering, what is the up/down bias?
How much uptravel from ride height in front? Just at the shock.
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42 MB that had a one night stand with a much younger 69 CJ5 and a 50s GM truck.
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Fltfndr
Member Joined: 01 Nov. 2013 Location: Clive, IA Status: Offline Points: 796 |
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Just wanted to weigh in on this discussion. just finished installing two limit straps on my front end. I had double shock mounts on both sides so I measured at full droop and had 20 inches between the shock pins. I built 20 inch limit straps for each side. First time out will be BHR
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Fltfndr
1948 CJ2A Restomod "Six Pac" The object of war is not to die for your country, but make the other bastard die for his. George S. Patton |
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chasendeer
Member Joined: 24 Feb. 2012 Location: Napa,CA Status: Offline Points: 1086 |
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Jeff
Could you update the first page of this with a "Build sheet" of BamBam? Thanks Jay |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Current configuration:
4.3 Chevy TBI SM465 transmission Dana 20 transfercase w/Rockeater 3.6 low range Dana 44 - 30 spline rear axle 4.56;1 gearing Detroit Locker Dana 30 - 27 spline front axle 4.56:1 gears Eaton Elocker Wheels, 16 x 5 Kelsey Hayes Tires 750-16 NDTs Front disc brakes - Jeep Rear disc brakes - GM truck Power steering pump chevy - gbox Ford Bronco reverse rotation Winch - Warn M8000 Front shock - Rancho Rear shocks Bilsten Springs - leaf custom ...... subject to change |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Well, as I said in the Rubicon thread, I lost first gear ... again Today I replaced the shift fork .... again .... and I cut my tranny tunnel more so I can get the tranny top off without dropping the trans:
... so now I have to figure out a new tunnel top to cover up this hacking. I suppose this winter I will just buy an SM465 from Novak. I've gone about as far as I'm willing to go with the two different ones I've used. .... also replaced the windhield glass and welded the arms back on: This winter I want to make a new frame that is stronger, can sustain a flop, and I want it to have removable glass where I can leave it out or pop in some polycarbonate. No time at the moment Something else I have been experimenting with is a new cut in the NDTs: ... basically mimic a Krawler tread. I'm not sure if these were better or not in South Dakota, Rubicon or Moab. If it was, it wasn't night and day. I was able to slow crawl all the way through Escalator but I credit that mostly to Stan straightening me out on the line. They do perform quite well here at home in dirt/mud. Thanks for reading. |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Couple changes today. First, a new set of kicks on the back with the new experimental tread design:
Next I worked on the shift tower. One of the problems I had in BAM BAM’s roll was that all the oil in the tranny drained out through the cane. I received council from Bridog who gave me two suggestions. 1. Next time roll 360 degrees 2. Put a CV boot around the shift tower. #1 seems easiest but just in case that is not possible, I added a CV boot as a backup plan: ..... still haven’t tested the boot yet but Trudy and I did get a chance to wheel Dairy Queen. |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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Ol' Unreliable
Member Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4226 |
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Dairy Queen terrain tougher than it looks?
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There's a reason it's called Ol' Unreliable
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Bob W
Member Sponsor Member x 4 Joined: 08 Aug. 2005 Location: Monticello, NY Status: Offline Points: 1691 |
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I have an M-38 shift boot on X98. It keeps rain out as well as oil in.
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Lee MN
Member Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4949 |
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A T-18 would end all your trans issues! .....
Lee |
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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More changes. This is one that I am hoping is one of my better upgrades.
Since my MB windshield is 2” shorter than a 2A, I have to use a thin seat cushion or else the top of the windshield is at eye level so I bought a gel filled cushion to see if I can stay thin but maintain comfort. This one is 17 x 15 x 1-1/4 thick. It’s still too early to tell how comfortable it will be in the long haul but my initial opinion is that it is way more comfortable than my old cushion. Good enough that I decided to make an OD cover and try it next week in Colorado. : |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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tamnalan
Member Joined: 08 Oct. 2013 Location: Port Orford, OR Status: Offline Points: 989 |
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Whaat? No more Menards Tree Stand cushion??
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Alan Johnson
1942 MB - "TBD" 1943 MB - "Lt Bob" 1950 cj3a M-100 x2 teardrop camper: https://forums.g503.com/viewtopic.php?f=141&t=201740 |
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Ol' Unreliable
Member Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4226 |
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Don't you usually either fold the windshield down or break it off?
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There's a reason it's called Ol' Unreliable
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oldtime
Member Joined: 12 Sep. 2009 Location: Missouri Status: Offline Points: 4183 |
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Jeff, I know the Warn O.D. was never officially adopted by the military but....
If you did put your D20 RE gears into a D18 configuration, then you would have the O.D. option. Just so happens that 3.6 Rockeaters are the slowest ratio transfer case gears that can accept an OD bowl gear. With O.D. you could drop down even lower than your current 4.56 differential ratios. Well that's all good, but only if you feel the need for even lower crawl ratios. The best thing about running D18 with O.D. is that you have more crawling ratio options. The O.D. unit alone doubles the crawl ratio selections. The example I'll use is my 100% Jeep crawler build. It's a factory flat fender jeep with F-134. T98-A at 6.398/1 Low gear and 3.09/1 First gear With a Warn 25% O.D. unit providing .75% gear changes. And yes of course it has the early Jeep standard differential ratios of 5.375. With a DS factory 2.46 TC gear set it has the following crawl ratios. 85/1 Low >>> 63/1 Low+O.D. >>> 41/1 First >>> 31/1 First + O.D. I'm seriously considering cheating and going to TL 3.16 (non factory gears) in the TC. With TL gears it would have a much better and a very usable spread of crawl ratios. 109/1 Low >>> 81/1 Low + O.D. >>> 52/1 First >>> 39/1 First + O.D. As you can see those would all be very usable crawl ratios. Think about it ...and we can crunch some SM 465 plus O.D. plus 3.6 RE and various differential ratios if you like.
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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Ol' Unreliable
Member Joined: 25 Sep. 2016 Location: CO Springs CO Status: Offline Points: 4226 |
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I meant to ask last week how the new seat cushion felt. Plumb forgot to.
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There's a reason it's called Ol' Unreliable
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oldtime
Member Joined: 12 Sep. 2009 Location: Missouri Status: Offline Points: 4183 |
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Say Jeff, Not sure if we talked about this or not concerning the SM 465...
It occurred to me that the poppet ball spring on the low gear shift rail may be weak or broken. Weak or partly broken poppet springs could provide inadequate control concerning shift fork position. |
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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