CHEEP evolution

Post pics and info of your current projects.
79chevy39.5's
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Postby 79chevy39.5's » Sun Dec 01, 2013 4:34 pm

I wanna see how light this thing is when done...small lightwieght and 36 iroks makes for exactly that

Wrench
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Postby Wrench » Fri Dec 13, 2013 6:58 pm

.
Last edited by Wrench on Tue Jan 24, 2017 7:27 am, edited 1 time in total.
Paul
'84 XJ, '19JL

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Postby Wrench » Sun Dec 15, 2013 7:41 pm

Inner fenders relocated 2" closer to frame rails, and entire wheel well radius made larger to fit 36's.

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I moved the inner fender wells because I noticed that under extreme flex, the tire on the stuffed side would hit the inner fender well pretty hard at an angle. In fact, it wore all the paint off. I can only imagine that it will be even worse with 36" tires.

If I were to do it again, I would measure it up and have a set of wheel wells made by one of the local sheetmetal vendors.

Large pieces of cardboard make excellent templates! :D
Last edited by Wrench on Mon Dec 16, 2013 8:03 am, edited 1 time in total.
Paul
'84 XJ, '19JL

OldGreen
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Postby OldGreen » Sun Dec 15, 2013 8:47 pm

This is fantastic.

Wrench
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Postby Wrench » Mon Dec 23, 2013 9:33 pm

Wheel wells checked for clearance.

This pic was taken with the axle sitting on the new bump stops. These bump stops are 1" closer to the frame than the previous setup, so the axle stuffs up 1" higher. Those are the 33" tires.

Image
Paul
'84 XJ, '19JL

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bobracing
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Postby bobracing » Tue Dec 24, 2013 11:58 am

Still have clearance when the axle is twisted up?
The top will be tilted in more and the axles twisted more with links being different "lengths" at that time.
James
'92 YJ with a little something of everything.

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Postby Wrench » Tue Dec 24, 2013 1:34 pm

bobracing wrote:Still have clearance when the axle is twisted up?
The top will be tilted in more and the axles twisted more with links being different "lengths" at that time.


Yes, that is the plan. That is why the inner wells were moved 4" closer together.

For those interested, here is a free suspension calculator, written on an Excel spreadsheet: http://www.patooyee.com/calculators/calculators.htm

Just pick the link at the bottom of the page.
Paul
'84 XJ, '19JL

Wrench
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Postby Wrench » Mon Mar 24, 2014 8:06 pm

First of all, YES, I have been making progress, just havent been posting it.

I got both sides of the rear boxed frame sections completed, and cage totally tied together.

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I also completed fabrication and installation of the rear lower arms and mounts.

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And here is a note for Dale:

This is how I made my "CNC" cut suspension mounts, using a standard plasma cutter and patterns cut from 1/8" plywood:

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I am using a contact tip that you can drag right onto the metal as you cut, no need for keeping a gap. Just drag it on the metal and keep it pushed against the wood pattern.
Paul
'84 XJ, '19JL

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mattawajeep
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Postby mattawajeep » Mon Mar 24, 2014 8:25 pm

Cool. It's weird seeing an exo-cage Cherokee that doesn't look like it was put together by a group of angry baboons.


I need to get one of those contact tips, it would make things a lot easier. CNC would be nicer though, I've got 30 pieces to cut just for the front bumper :shock:

Wrench
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Postby Wrench » Mon Oct 13, 2014 8:28 am

Rear shock hoops welded in and braced to cage:

Image

Image
Paul
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Livin4Today
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Postby Livin4Today » Mon Oct 13, 2014 5:51 pm

Very Nice! Which spreadsheets did you use off the link?
Lance

Building a capable off roader is easy, building a street legal one that you can wheel and then drive daily is the challenge...

2007 JKU, 7" RK lift, 40s, ARBs, 5.38s, Headers, Fox Coilovers, etc. http://www.Livin4Today.com

Wrench
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Postby Wrench » Mon Oct 13, 2014 6:19 pm

JK Lance wrote:Very Nice! Which spreadsheets did you use off the link?


"4-link calculator with suspension travel addition"

Very bottom of the page in the link.

It calculates all the really important stuff, including pinion angle change through your selected travel distance.

It has been very informative. I realized that my hillbilly rear setup I had before was actually not all that bad. It also made me understand why I had such a body-roll issue with my front end setup (track bar too low, below the vehicle CG). There is a ton of good info wrapped into that little program.
Paul
'84 XJ, '19JL

Wrench
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Re: CHEEP evolution

Postby Wrench » Sun Dec 25, 2016 10:37 am

OMG, 3 years since I posted here!

Christmas goodies from last year include Fox 2.5 remote-reservoir coil-overs, 14" travel.

This year, I picked up a 35 spline ARB for the rear and Nitro axles. I am sticking with the 3-series carrier and thick-cut gears.

The front axle is getting Nitro chromoly axles, Nitro solid u-joints, and 30 spline Warn hubs.
Last edited by Wrench on Sun Dec 25, 2016 8:17 pm, edited 1 time in total.
Paul
'84 XJ, '19JL

Wrench
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Re: CHEEP evolution

Postby Wrench » Sun Dec 25, 2016 8:15 pm

Front axle: ~'90 Wagoneer narrow (~60") low pinion. Already regeared to 5.13, 3-series carrier, Spartan lunchbox locker. 3-series carrier is more desirable, even though it requires the thick cut ring gear. This carrier will support modification to fit JK Dana 44 R&P's down the road if I have a failure. The JK R&P's use a much beefier pinion gear and larger diameter ring gear.

Front axle shaft install:

I gotta say, these shafts are noticeably harder material than the stock stuff, and machined to much better tolerances. The u-joints installed easier and everything lined up great. These joints have no needles at all. They rely completely on grease to lube them, and a coating of some kind on the shaft part. This allows the X to be much beefier. They also use full-circle circlips to retain the caps. They also have grease zerks on every cap, allowing the X to be solid (no grease port down the center) and stronger.

On a side-note, I also discovered I need new hubs. The factory hubs and corresponding outer shafts are 19 spline. The beefier Nitro outers (and RCV outers) are 30 spline, so anyone using those will need to upgrade the hub locks to 30 spline units, like the Warn Heavy Duty sets.

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Paul
'84 XJ, '19JL


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