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Unread 11-02-2009, 04:48 PM   #1
toyrocs
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Front axle OEM lower shock mount elimination?

I'm wanting to install longer front travel shocks on my 1998 tj that has a 1.75" BB. It has the Dana 30 HP out of a doner XJ.
I do NOT want to use the ford upper shock towers to raise the upper shock mount, use bump stop extensions or the aftermarket lower shock mount raising brackets. The point is to increase travel-- not just make it work!

I was thinking of cutting out all the metal structure for the lower shock mount ( cross pin area). Fabricate a new lower shock mount about 2"-2.5" lower than the orginal mount & weld to lower control arm bracket & axle tube. With the new shock mounts, also ensure clearance to remove/install the control arm bolts.
I'm running narrow 33" swampers with minimal rub on the plastic flares & just want to increase down travel & will be using some Rancho RS9000XL ( RS999168) .

Has anyone done this mod/or have any info or comments that may be useful?

I have searched for hours on this subject & found no info.
Thanks. Toyrocs


Last edited by toyrocs; 11-02-2009 at 06:49 PM..
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Unread 11-03-2009, 11:45 AM   #2
Jakemd98
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are you really having that much issue with lack of down travel? When i ran my 2.25" BB i dropped coils at full droop. not sure why you would want more down travel than that.
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Unread 11-03-2009, 11:54 AM   #3
NotURMailman
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^x2... I had to raise my lower shock mount and install bumpstops to properly utilize the 10" of travel in my shocks. Any more down travel (such as it was before I raised my lower shock mounts) and I would completely unload my springs. I set it to 5" up and 5" down and it works fine. (well... other than the tire still wanting to grab the fender when stuffed) and that's with 6" springs. The shocks weren't the limiting factor in my down travel to begin with, it was the LCA hitting the mount. After I notched and gusseted the mount I had to move the bottom of the shock up to use the down travel I had added and I need limiting straps to keep the axle from hangin by the shock. If I had 12 or 14" travel shocks, I could still not get any more down travel, as my springs would fall out...
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Unread 11-03-2009, 07:23 PM   #4
nriver
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Something like this?




These are the Clayton CA mounts. Thinking it is similar to what you are thinking. If I were to use the stock CA mounts, I would re-enforce them with 3/16, 1/4 plate or somethings like that.

Also look at some of Mud8's posts on the subject of shock travel. He is in the greater Portland area as well.
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Unread 11-04-2009, 09:57 AM   #5
toyrocs
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NRIVER, the pictures you posted are what I was thinking about. Currently I do have about 2" more down travel before the springs unload. This Dana 30 HP has been heavily modified & I would like to restrict mods to the axles.The plan was to go back to stock (replace front axle) if I ever sell it.

This TJ is my DD & will never have more than 33" tires as long as I'm the owner. I have a Toyota on 46" baja claws that is my off road (only) machine.

Toyrocs.
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Unread 11-04-2009, 02:00 PM   #6
Jakemd98
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just to be sure... your sway bar is disconnected, right?
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Unread 11-05-2009, 10:22 AM   #7
toyrocs
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Quote:
Originally Posted by Jakemd98 View Post
just to be sure... your sway bar is disconnected, right?
Yes both roll bars have been removed. It would be extremely difficult to install a front bar ( or reinstall the oem bar) due to my redesign of the tie rod / drag link/ custom steering arm bracket on passenger knuckle/ panhard bar ( style & frame mount).

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Unread 11-05-2009, 08:08 PM   #8
mudb8
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is that what the knuckles and pitman I just reamed for 1 ton tre's are for?

what shocks and length are you running...

a pair of OME n66L shocks will give you 11" travel and will unseat 4" lift springs.

since you only have 1.75" bb spacers, you could run up to 9.5-10" travel only if they are relocated to also stay with stock bumpstops. I may still have the lower mounts I built for mine, I ended up taking the easy/er way out for making room for 13-14" travel shocks. if I can't find em I'll make another pair

stop by, I'll show you what I did on mine and one I have in the shop currently.
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Unread 11-05-2009, 08:32 PM   #9
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If you only have 1.75 inch spacers with the factory springs, why not just install some Old Man Emu shocks (not the long travel versions)? They don't require any bumpstop extensions in the front axle and will extend 2 inches more than the factory shocks.
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Unread 11-08-2009, 05:17 PM   #10
toyrocs
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Quote:
Originally Posted by Border Dave View Post
If you only have 1.75 inch spacers with the factory springs, why not just install some Old Man Emu shocks (not the long travel versions)? They don't require any bumpstop extensions in the front axle and will extend 2 inches more than the factory shocks.
With the sway bars removed ( this is my DD & occasional Wheeler) I wanted to slow down the instantanious roll during quick turning on the pavemant. The body "lean" angle is ok . The quickness of the roll is what i'm concerned about the most. I have purchased some RS9000XL shocks ( adjustable dampining) with 2.1" more travel than stock. This may help somewhat. I'll let you know how this handles on the street.
Thanks. Toyrocs
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Unread 11-09-2009, 08:08 PM   #11
mudb8
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Quote:
Originally Posted by toyrocs View Post
With the sway bars removed ( this is my DD & occasional Wheeler) I wanted to slow down the instantanious roll during quick turning on the pavemant. The body "lean" angle is ok . The quickness of the roll is what i'm concerned about the most. I have purchased some RS9000XL shocks ( adjustable dampining) with 2.1" more travel than stock. This may help somewhat. I'll let you know how this handles on the street.
Thanks. Toyrocs
you'll need longer bumpstops or the shock mounts relocated for those... the collapsed length is also 2" longer than the stock shocks
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I want your factory 07-up take-off/thrown out JK front/rear Lower Control Arms! Bent ones are perfect also as long as the bushings and cold cut rings are in good shape/useable


HighLine Hood Jeepers
TJ Adjustable Track bars
DIY highline fenders.... 34-37's under 0"-2.5" lifts
shock length, bumpstop extension, tire size chart click here
DIY shock shifters, more uptravel/better ride




2011 E-350 4x4 Van conversion

2006 Rubicon Unlimited

ASE Certified Master Tech/Fabricator @ jeepwest.com
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