[JeepEngineers]

Originally Posted by scottyc

Have you guys figured out a way to deliver new Jeeps with full doors installed and half doors in boxes in the back? Are you actively working on it? Dual-door option is one I see requested very often.

We are in the process of creating 1/2 door kits for the 2 and 4 door Wranglers. You will be able to buy them over the counter at your dealer. The kit consists of 2 front doors in prime and all of the associated parts. They will need to be painted. We are planning to include hinges, but not mirrors as they can be swapped easily from the full hard doors. This is not planned as a factory option. The upper 1/2 windows will be sold as a kit as well. There will also be kits for the back doors on a 4 door. Timing is this summer. Thanks!

[JeepEngineers]

Originally Posted by 1fastR

Sorry, yes it is a 98 TJ with D35 swapping in D44 from an 04 TJ. Has trac lock in the 44.

OK... TJ.... pretty much a bolt in.. BUT, the U joints are different sizes. And, take a look at the rear brakes.. I think the lines are the same to the rear brakes...

As for the u joints... while not factory, they make hybrid joints that should make it compatable.. or better yet, upgrade the driveshafts too...

OH ! Forgot.. I think the rear driveshaft will be shorter... so you will need a new rear driveshaft anyway.. great excuse to upgrade !!!

[JeepMan1975]

I'm replacing the entire dash, instrument cluster and bezel, glove compartment and center console of my trusty, yet rusted YJ. Will the TJ's entire interior dash (from the left door to the right door) be able to be retrofit into a YJ?

[undertow]

There has been much discussion on this and other forums about the towing capacity of the JK Unlimited. The Liberty is rated for 5000lbs, but the Wrangler Unlimited is only rated for 3500, even though it has a longer wheelbase, bigger engine, and (I think) the same transmission. Why is the rated towing capacity of the Unlimited so much lower?

[JeepEngineers]

Originally Posted by 8282feet

Would there be there any problem caused by installing a speedometer recalibration device between the transfer case speed sensor and the PCM on an '04 manual transmission Rubicon? The device I have in mind is a Yellow Box, which taps into the 5-volt wire, taps into the ground wire, and is inserted inline in the speed sensor signal line. The device is designed for magnetic hall-effect sensors, which I believe the Rubicon has.

If this looks ok to you, what precautions if any should I take?

By the way, my Rubicon speedo reads 10% high due to a combination of original factory error, differential ratio change (4.88), and tire size change (35").

Thanks!

The dealer can recalibrate your speedo with the different gears and tires with a machine called a drb3 this only takes a few minuets and will save you the cost of the box and the time to put it in

[rrivas]

Re: 60/40 seat headrest not folding correctly.

Customer assistance center was not helpful.

How is the rear seat headrest acutated? is there a cable that has to be released or is there some other means? 2 different dealerships were not able to fix it. 2 others did not have trim guys there.

[JeepEngineers]

Originally Posted by JeepMan1975

Hi guys, thanks for coming! I've tons of questions regarding the JK and my '95 Wrangler. But to make things easier to answer, I'll limit one question per post unless you guys can handle more.

First off, will either JK t-cases bolt up to the 545RFE transmission?

Yes, the JK t-case will bolt up to the 545RFE.

[scottyc]

I use my JK for work, which requires fairly frequent starting and stopping (for less than 2 hours). No this question is not about oil.

The outside air temperature sensor is set up with logic that I guess is intended to keep it from reading too hot from radiant engine heat. However, the way I use my Jeep, it will occasionally be 3:30pm and 70 degrees and the Jeep will still display 45 degrees (from 7am--the last time the requirements for updating were met).

Is there some way I can fool the temp sensor into rereading? Momentarily grounding some wire or something?

[JeepEngineers]

Originally Posted by jscherb

Guys,
I'm planning on stretching my LJ and building a retro-looking stepside pickup out of it.

To stretch the frame, I've got a second LJ frame; but cutting the two frames in different places and joining the longer "halves", I will gain 24". The vehicle frame will be cut just before the frame turns up to go over the rear wheels; the second frame will be cut just before the frame rails bend in (about 24" ahead of the first cut).

The Brute kit stretches the TJ frame 24" and apparently then don't have issues with excessive frame flex; this would stretch the LJ frame 24" (roughly the equivalent of stretching the TJ frame 34-36").

Do you have an opinion on the flex and strength of the frame that will result from the lengthening I've described? Do you think I should plan an additional crossmember to stiffen the longer frame?

Some photos of the concept model for my conversion are shown below...
Jeff

We certainly can't vouch for what aftermarket companies are doing to our vehicles. We also don't recommend this for modification for Wranglers.

If you do decide to take this on, consult with a certified welder to make sure that the job is done properly.

Here is a link on the Dodge Body Builders guide that shows some guidelines on the Dodge Heavy Duty trucks: Frame Alteration Recommendations This does not cover the Wrangler, but may provide some useful information.

Hope that helps!

[JeepEngineers]

Originally Posted by JeepMan1975

I'm replacing the entire dash, instrument cluster and bezel, glove compartment and center console of my trusty, yet rusted YJ. Will the TJ's entire interior dash (from the left door to the right door) be able to be retrofit into a YJ?

In short - NO.

We wouldn't take this one on.. sorry. Be cautious with airbags..

[jeep'd]

When I start my 03 TJ in very cold weather (around 20 or below), and I have everything turned off besides the engine, I hear a sound that almost sounds like a sputter or knocking which also sounds like it could be an exhaust leak where ther head meets the manifold. But as soon as it starts to warm up the sound goes away.
Is this common? And is better for the engine if I let is warm up to about 130 or so before I start the drive it, or does it even make a difference?

[scottyc]

Originally Posted by JeepEngineers

We are in the process of creating 1/2 door kits for the 2 and 4 door Wranglers. You will be able to buy them over the counter at your dealer. The kit consists of 2 front doors in prime and all of the associated parts. They will need to be painted. We are planning to include hinges, but not mirrors as they can be swapped easily from the full hard doors. This is not planned as a factory option. The upper 1/2 windows will be sold as a kit as well. There will also be kits for the back doors on a 4 door. Timing is this summer. Thanks!

Hallelujah! (Good move.) If I don't care to pay to have them color-matched, do I need a protective clear coat or will the primed state they come in be okay?

Thanks for doing this. I hope Cerberus accountants keep the price down...

[JeepEngineers]

Originally Posted by Jerry Bransford

My trusty '97 TJ with its 4.0L engine still has the random '43' DTC code preceeded by the usual rough running engine with often severe missing, it sounds like it is running on four cylinders. There was a Technical Service Bulletin for early TJ 4.0L engines that said to try replacing the valve springs because there was a bad batch of weak valve springs in the early model TJs.

I replaced my valve springs with the recommended p/n valve springs and that somewhat reduced the problem but it definitely did not cure it. Jim Repp, a senior engineer at Jeep even tried to help me with the problem but that was before the TSB was issued and even his help didn't help. The TSB did not help either.

Is there a permanent fix for this random '43' code and misfire problem? The Jeep will be running very smoothly and then very suddenly, it will start missing and then within a few minutes the Check Engine light illuminates with a 43 code freshly stored. Then just as suddenly, within a few days, it will suddenly and immediately clear up on its own.

I am certainly just one of many with this problem. Help!!

Well Hi Jerry.. you can "guess" who this is.... still fighting this problem ? I thought we killed it with the new valve springs? I know the new injectors didn't fix it.

The other thing to try was replacing the injector harness... and if it has that imfamous heat shield.. that can cause wierd faults too.

Guess we're gonna have to talk some more....

[JeepEngineers]

Originally Posted by jloughlin

There has been much discussion on this and other forums about the towing capacity of the JK Unlimited. The Liberty is rated for 5000lbs, but the Wrangler Unlimited is only rated for 3500, even though it has a longer wheelbase, bigger engine, and (I think) the same transmission. Why is the rated towing capacity of the Unlimited so much lower?

Well, many factors play into our rating for towing capacity. The engine size is different, cooling within the engine campartment is different, brakes, etc. Take a look at what the owners manual says in the towing section. The total weight of the loaded vehicle is a very important factor as well as aerodynamics. I guess the bottom line is that is what the total package can safely tow.

[JeepMan1975]

I have in my disposal a salvaged production Hemi powertrain with MDS from an '08 RAM. I don't mind making my YJ drive by wire, so my question is would this be a good engine to use or should I sell it and get a mopar crate Hemi engine (though it's not street legal)?

The next question would be about how to get the Jeep to pass emissions successfully (I know the parts required of an exhaust system, just am not sure which model year parts to use). Any help is greatly appreciated.