Bump Stops

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Topic author
Jevman
Posts: 114
Joined: Sat Nov 20, 2021 1:21 pm
Location: NW Minnesota

Bump Stops

Post by Jevman »

So can anyone tell me what they have done for Bumps Stops on the their Wags/Cherokee's and J10's after putting in a Skyjacker 4" lift?
78 Cherokee Chief W/T, 4" lift, 35x12.5R17 BFG TA's KO2's, 401, 700r4, Atlas II 3.0:1, 4.56, Pro Flow 4, CVF Serpentine System, E-Locker front, True Trac rear, Dakota Digital, Hydroboost Power Steering and Brake System, rear wheel disc conversion, E-Stopp Elec Brake Systm.

cpfeifffer
Posts: 82
Joined: Mon Nov 26, 2018 6:03 am

Bump Stops

Post by cpfeifffer »

Front: https://timbren.com/i-30497566-active-o ... r-kit.html ABSTORSEQ

Back: https://timbren.com/i-30497563-active- ... t-kit.html ABSTOFLC1A

ABSTORSEQ = uses 5/16" bolt; 3-11/16" to 5-1/16" center to center
ABSTOFLC1A = uses 5/16" bolt; 3-11/16" to 5-1/16" center to center

Both are 5 11/16” tall.

Personally, I used the front one for both. Front one bolted up perfectly. Back one needed to be offset to clear the u-bolts so you may want to try the one I recommended above. It has an offset in the bracket already.

These definitely aren’t cheap but were tall enough for the 4” lift.

Got mine from Summit on sale.


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1978 Cherokee Chief
5.3L L33, 4L60E, Atlas II 5.0
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tgreese
Posts: 7168
Joined: Fri Jun 08, 2012 6:31 am
Location: Medford MA USA

Re: Bump Stops

Post by tgreese »

Wow - expensive.

I would use the factory bump stops, or their urethane replacements.

If you use longer shocks than stock, you should space those down from the frame so the bump stop stops the axle and not the shock. Compare the collapsed length of your factory shocks and replacements, and move the bump stop down by the difference. I thought you don't need anything fancy - just a piece of rectangular steel tube stock the thickness of that difference.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
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Topic author
Jevman
Posts: 114
Joined: Sat Nov 20, 2021 1:21 pm
Location: NW Minnesota

Re: Bump Stops

Post by Jevman »

Thanks Guy's, both ways have went threw my head and the purchased ones would look great, making the tube steel one's, no one would ever notice the difference if they where powder coated. I think I'm gonna go with the Timbren stops on this build just because almost every nut and bolt is being replaced on this frame off 78 WT Chief.
78 Cherokee Chief W/T, 4" lift, 35x12.5R17 BFG TA's KO2's, 401, 700r4, Atlas II 3.0:1, 4.56, Pro Flow 4, CVF Serpentine System, E-Locker front, True Trac rear, Dakota Digital, Hydroboost Power Steering and Brake System, rear wheel disc conversion, E-Stopp Elec Brake Systm.

rocklaurence
Vendor
Posts: 2569
Joined: Sat Mar 30, 2013 6:53 am

Re: Bump Stops

Post by rocklaurence »

Ive used XJ rear bump stops. They are 4.5" tall, solid rubber and Cheap. Ebay has them https://www.ebay.com/itm/354113002928?e ... SwVF1iq8tp

Topic author
Jevman
Posts: 114
Joined: Sat Nov 20, 2021 1:21 pm
Location: NW Minnesota

Re: Bump Stops

Post by Jevman »

rocklaurence wrote: Tue Jul 05, 2022 2:23 pm Ive used XJ rear bump stops. They are 4.5" tall, solid rubber and Cheap. Ebay has them https://www.ebay.com/itm/354113002928?e ... SwVF1iq8tp
Do these bolt right on? I'm wondering if they may be a little short of whats needed, i'm overseas right now so I can't do any measuring but as another said maybe I'd best measure the old and new shocks compressed and go off the difference.....
78 Cherokee Chief W/T, 4" lift, 35x12.5R17 BFG TA's KO2's, 401, 700r4, Atlas II 3.0:1, 4.56, Pro Flow 4, CVF Serpentine System, E-Locker front, True Trac rear, Dakota Digital, Hydroboost Power Steering and Brake System, rear wheel disc conversion, E-Stopp Elec Brake Systm.

rocklaurence
Vendor
Posts: 2569
Joined: Sat Mar 30, 2013 6:53 am

Re: Bump Stops

Post by rocklaurence »

No, theyre not a direct bolt-on. I use 1.5x1.5" square tube to adapt the bolt pattern between the two. Also, the added height of the adapter should be just right for a 4-5" lift. The Stops should prevent the socks from bottoming out and prevent the springs from over-compressing to Flat. To push an Arched spring to Zero or negative will fatigue and collapse the spring.
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