View Full Version : TJ6 Build

El Camino
05-31-2010, 01:23 PM
A bit of the history behind this build:

I went to Moab UT for 10 days of wheeling this past September. Locked front and back, 4" short arm, the jeep performed well. The persistent issue was the short wheelbase. A friend I wheeled with was running an LJ with 104" wheelbase and long arms apposed to my 93". he outperformed me in most areas. With the short wheelbase and shortarm suspension, during full drop, the wheelbase actually shortens as the front and rear axle move toward each other. I started looking at long arm kits with wheelbase stretch. Adding 6" to the wheelbase with a long arm kit comes in around $5000. 2700-3200 for lift, 800 for new fuel cell (with half the capacity) to compensate for the rear axle. 800 for gen right or other stretch wheelbase corners or comp cuts, which I dont like the look of. During my poking around on the internet, I came across a couple guys that had stretched the frame and body, rather than just suspension. After a few months of investigating I figured I would achieve better results and save $$ doing it this way, so with the help of a good friend who just happened top be a ticketed welder and autobody tech. We got to chopping.

First up we chopped the roll bar and removed the tub after adding some supports so things didnt spread apart




We then used some TJ frame sections that I scored from a scrap frame, and built 15" sections with sleeves out of the same material to ensure a good fit and similar compound. We basically copied the idea that the AEV Brute conversions use for their jeep pick up conversions. This part was very time consuming, because each sleeve was ground for a precise fit at all 8 entry points of frame rail. it slid together perfectly.


After much measuring and bracing, we split the frame.



Then to make a long story short, we put it back together.



Built a new crossmember to support the new section of floor. Had some old body mounts kicking around and some square tubing worked well.



Then we built the new floor.



Then some donor pieces from a junked TJ for the side rails. And some side panels.





Filled gap in roll (sport) cage. Scored a deal on some Aluminum for side panels



Voila !



You can see the difference in this pic, between the 3 wheelbases. The reason for the 15" stretch is that the body is exactly the same length as the unlimited LJ, so No custom tops need to be made. I can just buy a used LJ top. The LJ has a 5" overhang at the rear where as the departure angle on the lengthened TJ will be slightly better, whereas the breakover angle will be slightly reduced. This issue will be resolved when the 40" tires go on.


I have a ton more pictures, but this will give the basic idea of what was done and why. There is still some finishing touches. The panels will be painted red, and the roll bar will be modified and upgraded soon.

05-31-2010, 01:57 PM
Awesome job man ! Looks great. I love this shit ! I have a cummins engine that I am goint to install into a 3/4 ton chev p/u then going to bob the box ,rockwells on 47's. I will post pics as it happens too. Keep up the good work.

05-31-2010, 03:19 PM
good job

05-31-2010, 03:24 PM
Thanks for posting!!

05-31-2010, 04:56 PM
nice build looks great

05-31-2010, 08:17 PM
Clean work man, nice to see shit being built proper. Also keep the Trailer Toung wheel in place to prevent High Centers :D

05-31-2010, 08:47 PM
:dontknow: where are the Moab pics

05-31-2010, 09:11 PM
Very nicely done now where are the pictures of u out performing ur buddy??

El Camino
06-01-2010, 09:27 PM
Short vid from Moab. It does a good job of showing the short arm limitations. The footage is kinda squashed but it gives the basic idea

http://i259.photobucket.com/albums/hh311/Jenoix/th_M2U00199.jpg (http://s259.photobucket.com/albums/hh311/Jenoix/?action=view&current=M2U00199.flv)

06-01-2010, 11:12 PM
[36] nice job on the stretch[cheers]

FU Toolbag
06-02-2010, 05:35 PM
So I guess after all those pm's you did it youself? Thnks for the heads up.

06-02-2010, 06:48 PM
vid looks like tuna except with more and lighter hair but the wheelin is too intense :D

El Camino
06-02-2010, 07:56 PM
So I guess after all those pm's you did it youself? Thnks for the heads up.

Thx man. A friend of mine who does autobody helped out. I didn't know he had frame experience. He helped me do it in my garage at home. Just fell together.

El Camino
06-02-2010, 08:03 PM
vid looks like tuna except with more and lighter hair but the wheelin is too intense :D

I know that wasnt much of a wheeling vid, but it shows the short arm can fuck up what would have been an easy up with the longer wheelbase. the same scenario kept occurring. On a few of the super steep climbs I was getting both front tires in the air. The risk of a "end over roll" was pretty high with the shorties.