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Unread 06-14-2011, 06:01 PM   #1
J_Impact
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TJ & LJ Body Difference

Hey Guys,

I checked out the TJ/LJ specifications area and all I could find was TJ wheelbase 93.4" with 155.4" length and LJ wheelbase 103.4" with 167-171.7" length.

What I am looking for is to find out WHERE the exact differences are in sizes in body and frame are between the two. Just visually looking at pictures of the body it appears that the LJ makes up with space between the door and rear wheel along with the rear wheel and the back edge of the Jeep.

I own a 2005 TJ and have access to a 2005 LJ frame just a couple of hours from me. I'm having some sick thoughts of placing my TJ body, engine, tranny and t-case on the LJ frame then stretching my tub...

Any links or ideas would greatly be appreciate!

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Unread 06-14-2011, 08:30 PM   #2
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Quote:
Originally Posted by J_Impact View Post
Hey Guys,

I checked out the TJ/LJ specifications area and all I could find was TJ wheelbase 93.4" with 155.4" length and LJ wheelbase 103.4" with 167-171.7" length.

What I am looking for is to find out WHERE the exact differences are in sizes in body and frame are between the two. Just visually looking at pictures of the body it appears that the LJ makes up with space between the door and rear wheel along with the rear wheel and the back edge of the Jeep.

I own a 2005 TJ and have access to a 2005 LJ frame just a couple of hours from me. I'm having some sick thoughts of placing my TJ body, engine, tranny and t-case on the LJ frame then stretching my tub...

Any links or ideas would greatly be appreciate!

The LJ frame and body are 10" longer in front of the rear axle and 5" longer behind the rear axle.
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Unread 06-14-2011, 08:40 PM   #3
Tinga
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Quote:
Originally Posted by J_Impact View Post
Hey Guys,

I checked out the TJ/LJ specifications area and all I could find was TJ wheelbase 93.4" with 155.4" length and LJ wheelbase 103.4" with 167-171.7" length.

What I am looking for is to find out WHERE the exact differences are in sizes in body and frame are between the two. Just visually looking at pictures of the body it appears that the LJ makes up with space between the door and rear wheel along with the rear wheel and the back edge of the Jeep.

I own a 2005 TJ and have access to a 2005 LJ frame just a couple of hours from me. I'm having some sick thoughts of placing my TJ body, engine, tranny and t-case on the LJ frame then stretching my tub...
Any links or ideas would greatly be appreciate!

It would appear that the difference is where you stated.


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Unread 06-14-2011, 08:57 PM   #4
J_Impact
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Quote:
Originally Posted by undercoverfab View Post
The LJ frame and body are 10" longer in front of the rear axle and 5" longer behind the rear axle.
Thank you for the exact numbers!

Maybe you can give me some more info...

Due to the extra 10"s in the front is there an extra body mount there?

PS I've been looking at your products. I like!
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Unread 06-14-2011, 09:04 PM   #5
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Quote:
Originally Posted by J_Impact View Post
Thank you for the exact numbers!

Maybe you can give me some more info...

Due to the extra 10"s in the front is there an extra body mount there?

PS I've been looking at your products. I like!
No extra body mounts. The stretch takes place just behind the rear-most body mount below the door.
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Unread 06-14-2011, 09:15 PM   #6
J_Impact
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Ok thanks.

I'm liking the direction my plan is heading! I'll extend my tub behind the door 10" for sure... Just not sure if I want the other 5". A semi bobbed LJ... Interesting!
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Unread 06-14-2011, 09:26 PM   #7
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look up -sean-'s build on this forum, and his write-up on pirate4x4. he bobbed his LJ to TJ specs, such that a TJ soft top or hard top would fit like factory, but retained the LJ wheelbase. very nice fab work.
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Unread 06-14-2011, 09:29 PM   #8
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Yeah, I would LOVE to do that: put an LJ frame under my TJ for a "factory" stretch. Perfection.
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Unread 06-14-2011, 09:32 PM   #9
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Originally Posted by J_Impact View Post
Ok thanks.

I'm liking the direction my plan is heading! I'll extend my tub behind the door 10" for sure... Just not sure if I want the other 5". A semi bobbed LJ... Interesting!
There's an extra cross-member on the LJ frame about 5" in front of the rear cross-member that will need to be removed if you plan to leave out the 5" stretch behind the rear axle.

As Unlimited04 alluded to, you will have a tough time fitting a top should you decide to go with an overall length in between TJ and LJ.
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Unread 06-14-2011, 09:35 PM   #10
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Someone should develop and kit to stretch the TJ frame and body to fit the unlimited top. Cutting directions/templates and all the parts to complete the stretch. Of course, unless you plan to cut it twice that would mean a 15" increase in WB. That might be a bit much for anything less than 37-39" tires.
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Unread 06-14-2011, 10:34 PM   #11
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There probably isn't enough market for this for some one to make a kit. I mean it's not like bare LJ frame are laying all over the place. Its just something the requires custom fab work.
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Unread 06-15-2011, 05:26 AM   #12
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There probably isn't enough market for this for some one to make a kit. I mean it's not like bare LJ frame are laying all over the place. Its just something the requires custom fab work.
You're right about the market not being there for that type of kit... but what I meant was a kit to stretch the TJ frame AND tub. You wouldn't have to go buy anything else.
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Unread 06-15-2011, 09:14 AM   #13
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Is that you George?
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Unread 06-15-2011, 05:53 PM   #14
J_Impact
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LOL Bored at work?

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