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Jeep Cherokee XJ Rear Shock Towers

WAZZUXJ

SoCal_XJ FB
NAXJA Member
Location
Aurora, CO
Rear shock tower build.

Main points I focused on while designing the shock towers:

1) Keep it simple.

2) I wanted to retain as much cargo room as possible.

3) I still wanted the ability to lay down the seat and carry longer items.

Here is the before:

IMG_20141116_121332225_zps869bcd24.jpg


Carpet and padding removed:

IMG_20141116_122858880_HDR_zpsbf658f8c.jpg


I cleaned off a section of the rear frame:

IMG_20141116_132323543_HDR_zps68af8042.jpg


I then added an 18"x4.5"x.125" steel plate to the frame:

IMG_20141116_141842427_HDR_zps88ec49b9.jpg


Plate and shock hoop welded:

IMG_20141122_143742307_zps951521b9.jpg


Shock hoop inside (top of hoop is at 14.5"):

IMG_20141122_143715596_zpsb566e9cd.jpg


Upper shock mount tabs added:

IMG_20141122_153033577_zps4a40d4ee.jpg


Lower shock mount stud added to spring plate:

IMG_20141123_102316973_zpsc6e69b92.jpg


12" Bilstein shock mocked up:

IMG_20141122_165033743_zpsa11d7ccc.jpg


Shock hoop painted:

IMG_20141123_102336954_HDR_zps1442a13a.jpg


Both hoops completed:

IMG_20141123_183252396_zpsf683fb26.jpg


IMG_20141123_183303396_zpscb183777.jpg


IMG_20141123_184653625_zps1744948c.jpg


I have put almost 1k miles since the install and have done a couple offroad trips. The shocks work very well. There is a little flex in the hoops, so I will eventually just add a trigulation brace to the wheelwell.

The shocks have about a 5 degree angle inwards and have very little side to side movement between full extension and compression. I have about 1/2" clearance around the shocks and have not found any contact.

Total cost for materials:
1) Rusty's universal shock hoops - $80 shipped
2) 18"x9"x.125 steel plate - $6 local metal supply scrap pile
3) (2) Jeep CJ T-176 shift boots - $16 shipped.
4) (2) Shock studs - already had on hand (included with Rancho shocks I was running)

Total: $104
 
I'm curious, you say these are 12" shock bodies. What are the extension/compressed lengths? I have 12.03"/18.5" 5150's in my rear and their at the stock location with bar pin eliminators at the body and raised tabs on the axle tube. Seems like you didn't gain anything?

Here is my rear bumped out. I could have gone with longer bodies even.
485E092F-3BEB-435C-95FC-837A0C80D3D6_zpsvqnzritr.jpg


I will say though, you do clean work and I admire your organized cargo area.
 
Sorry, the shocks are 12" travel (18" compressed, 30" extended). I have them mounted at 24" for 6" up and 6" down.

Thanks, mtbxk87, ehall, and s14 unimog.
 
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Here is a shot of the shocks compressed with about 1.5" left before tire contacts the wheelwell.

0eb13e28-6dc8-4488-a23b-3792f55d63b9_zps324a84da.jpg


6b7d492d-19f8-4324-92cd-705401e989d4_zps01988c47.jpg


This is the shock extended.

9bad6ad6-3819-46f1-85ff-8f0beec861a9_zps83d180b0.jpg


92697e83-b5a8-474c-b0a2-04ae5a0443e6_zpsdb8f689e.jpg
 
On the driver side I opened up one big hole to determine the mounting. I later welded back in most of the sheet metal. On the passenger side I only cut where needed.

cd747ca8-7f16-44f7-9ef9-b2c93c47d9e0_zps5f4530c6.jpg


I do plan to glue down some rubber matt aroung the shocks. The rubber will seal right up against the shock, but still allow it some movement. I will post some pics once installed.
 
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The ride is rediculously soft! Once I had it finished and hit a few speed bumps in my neighborhood, I could not stop grinning. The difference is night and day.

I also have HD Offroad no lift shackle relocation boxes.
 
I'm curious how much of the improvement in ride quality is attributable to the new shock angle, vs. upgrading from Ranchos to Bilsteins.

Super clean though. I really need to order more dies for my bender and start getting some real work done now that I have a local DOM supplier that'll deliver full sticks directly to my driveway.

Oh yeah - and what radius die did you use?
 
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I can definitely say the Bilstien's improved the ride over the Rancho's. I can feel the difference in how the front rides with no changes but the shocks.

The biggest effect on the rear though I would have to say is the HD Offroad No-lift Shackle Relocation Brackets. Shackle angle was non existent prior to install.
 
This has been on my do-do list for some time now. But I keep getting side-tracked doing a custom dash and barn door conversion. Maybe this coming summer.

Nice work :)
 
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