Gotem'...now to install them...

[HOrnbrod]

Hi, Don,

 

Our springs were manufactured with 9 inches of free arch from the center of the bushings to the top of the main leaf. That would make them about 10 inches from the ground to the main leaf as in the picture above, so they did not loose any arch in the first three months. The only reason that we removed them was to test our 4.5" kit. We did test the 3 inch springs by carrying 1400 lbs. of springs in the bed for about 5 miles, but I wouldn't recommend it, that's why we also make the 4 leaf springs.

 

Little known facts:

 

The 980 lb., 1100 lb., 1160 lb., 1220 lb., and 1280 lb. capacity springs for the Comanches are ALL made from 3 leaves of 2-1/2 X .291 spring steel with a .625 thick 2nd stage helper leaf on the bottom. The only difference is in the arch. We have the blueprints to prove it.

 

The 1440 lb. capacity spring is made from 2 leaves of .291 thick spring steel, 2 leaves of .262 thick spring steel, and the .625 thick 2nd stage helper leaf.

 

The 1700 lb. capacity Metric Ton spring is made from 1 leaf of .291 thick spring steel and 2 leaves of .323 thick spring steel, with a 2nd stage helper spring pack made of one leaf of .590 spring steel and one leaf of .625 spring steel.

 

BTW great avatar. :D

 

Hey Tom;

 

There were two versions of the original Metric Ton springs manufactured. The springs on the 86-90 MJs (p/n 52003676) had two thick helper leafs and three thin leafs (don't know the actual thickness) and were rated at 1600 lbs. These are the ones I have on my 91. The free arch was 9.75 when I installed them about two years ago, anf they have sagged a little over 1/2". These springs gave me almost a full 3" of lift. The 91-92 Metric Ton springs (p/n 52001825) had one thick helper leaf and four thinner leafs, and were rated at 1580 lbs. These are hard to find.

 

Like the avatar huh? I figured I'd change it because everyone must be getting sick of looking at the chrome on my heep.

[BLHTAZ]

Hi, Brent,

 

That noise is the poly bushings. It sounded the same on my truck, so all production springs are getting factory style rubber bushings. Those are the prototypes. To stop the squeaking, you will have to use grease on the sides of the bushing, since that is where the noise is coming from. We ran those for about 3 months, so they are already settled in.

 

Thanks,

Tom

Hey Tom... Thanks for the reply. Somehow I missed it until now... :oops: ;)

 

I will order some rubber bushings when I get to work today then.

Well...I got the factory rubber bushings, but they do not fit in these springs. The factory bushings are way to big to fit in the eyes of the Hell Creek springs. We took the poly bushings out and coated them inside & out with a good synthetic grease so it is quiet as a mouse right now, but I know that will not last forever.

 

Tom...what bushings are you using in your springs? Can I buy them from you or can you tell what to get?

[HellCreek]

Tom...what bushings are you using in your springs? Can I buy them from you or can you tell what to get?

 

We use an RB-121 bushing on the anchor (larger) eye. The shackle bushing is the same as factory. Yes, you can get the rubber bushings from us.

 

Thanks,

Tom

[BLHTAZ]

The factory bushings are rubber inside of a steel sleeve and neither end would fit in the spring. :dunno:

[HellCreek]

Hi, Brent,

 

Sorry, I told you wrong. We use an RB-121 in the anchor eye and an RB-71 in the shackle eye. You can get these from us.

 

Remember, these were the prototype springs. All of the production springs have the RB bushings installed.

 

Thanks,

Tom

[BLHTAZ]

Hi, Brent,

 

Sorry, I told you wrong. We use an RB-121 in the anchor eye and an RB-71 in the shackle eye. You can get these from us.

 

Remember, these were the prototype springs. All of the production springs have the RB bushings installed.

 

Thanks,

Tom

Hey Tom...thanks for the info. I'll contact you about getting some rubber bushings for them.

 

Please be assured that I am not upset or angry with you over any of this as I knew the deal when I got the springs :cheers: ;) . Just looking for what to do to make them be what I want.

[500-comanche]

Much of this thread applies to some of the questions I have about lifting my MJ. I have an 89 MJ LB with an 4.0L 5spd. It is the ax15 AND it has a D44 in the rear with 3.07 gears in the front and rear. I doubt it is the metric ton package because of the manual and high gears, but the 44 is built for the truck, it indicates the gearing on the diff housing, and YES IT IS A 44 AND I CAN TELL THE DIFFERENCE!. Anyway, I want to lift it 3" but maintain the best ride I can and the load capacity the truck has (I am ashamed to admit what I have asked this thing to haul) :oops: all while keeping it as cheap as possible of course. I work with an expert welder who offered to build some drop down brackets for the rear while I get coils for the front, but I need to get this thing set up asap and these springs could be just what I have been looking for, but I don't know what spring rate I have, or what I should get.

[feerocknok]

I work with an expert welder who offered to build some drop down brackets for the rear while I get coils for the front, but I need to get this thing set up asap and these springs could be just what I have been looking for, but I don't know what spring rate I have, or what I should get.

Please don't make drop brackets for the leaf springs. PLEASE don't!

Call up Tom on the spring rate, he'll get you worked out.

[500-comanche]

Please don't make drop brackets for the leaf springs. PLEASE don't!

Call up Tom on the spring rate, he'll get you worked out.

 

Why do you feel so strongly about the brackets? I could understand your position better if I knew why u say this. This guy is very talented. The drop brackets would be built over the existing ones with the new eye 3" lower and back about 11-12mm, with 1/4 inch steel and boxed on both sides. He has done a number of these for others for much bigger trucks with great results.

[BLHTAZ]

If you use shackles that are long enough to lift it 3", you will have to adjust the pinion angle on the axle as the shackles will cause it to turn up too far and you will have vibe issues and possibly trouble with ujoints. Shackles are definitely the wrong way to lift a truck of any kind.

[92comanche4x4]

How much are the springs and hat would i do to lift the front?

[BLHTAZ]

Contact Tom about the springs for the rear. He is a member here using the screen name "Hellcreek". He typically has them on eBay too...just type "Jeep Comanche Springs" in the search and you should find them.

 

I used the RE 3.5" kit for the front. You will need something comparable to make it come out level.

[92comanche4x4]

whats the r.e do you have a link to there website? i got 3in rough country springs right now for the front and was gonna do shackles for the rear. but i decided to wait on doin a lift till i get the money and buy everything at once insted of picing together a lift.

[BLHTAZ]

RE = Rubicon Express

 

I bought This Kit

 

I also added These Upper Control Arms

 

You will also need to figure out the shocks. I went with ProComp ES9000's as I always do. RE does sell shocks as well so you could always just have them send the appropriate shocks with the kit.

 

I used the Add-a-Leafs from the kit to start with until I found the springs from Hell Creek. The AAL's are VERY stiff and not recommended for continued use. Yes, it is an XJ kit, but the front is the same and all I had to do was tell them thatI needed the longer AAL's for an MJ and they traded them out for me. All told...I spent a little over $600 on the RE/ProComp stuff alone.