SKU: 67287919766

6” Cummins lift kit 89-93 system with rear springs

$926.55 $1029.50
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Description

6” Cummins lift kit 89-93 system with rear springs6 inch lift kit for your cummins equipped 1st gen. Since its a system rather than a kit, it includes rear lift springs to replace the kit add a leaf and extra lift block in the rear. Includes shocks. Will require a drop pitman separately but we would recommend you combine that with our crossover steering kit. Otherwise extended brake lines are the only other extra option that will make it complete. Based on 89 93. Can be used for earlier trucks with

6 inch lift kit for your cummins equipped 1st gen. Since it’s a “system” rather than a “kit”, it includes rear lift springs to replace the “kit” add-a-leaf and extra lift block in the rear. Includes shocks. Will require a drop pitman separately but we would recommend you combine that with our crossover steering kit. Otherwise extended brake lines are the only other extra option that will make it complete. Based on 89-93.  Can be used for earlier trucks with the diesel swap with small mods, mostly spring eye bolt diameter. We have customization tips to make this lift look and perform better than delivered. Just send us an inquiry after purchase. 

Questions from customers: I’ve got a 1991 Dodge w350 12v and need to lift 4” to clear some 35’s.  I’d like to do some wheel spacers also for a little offset!   Can you send me a list of what you recommend I buy to install? I don’t want to order anything wrong!

Answer: No problem. We can set you up,   I would do our 6” leaf springs and recommend a mod, (remove the shim and at least the bottom shortest leaf from the pack, I personally would also remove the second shortest leaf as well, leaving a 3 leaf pack, that rides pretty soft but still gets near the lift you are looking for.) (often these trucks are heavy on the left front and if that is the case you could put that one shortest leaf back in the driver pack, even a shorter one just for spacing)

   Next we often suggest our spring offset plate kit, including top u-bolt plates to move your axle 1” forward. This increases tire clearance where tire-to-fender contact is most sensitive to damage.  
   We have a u-bolt kit for this. 
   The compliment for this to work well is our front extended 1” shackles. This puts a 1/2” lift on whatever leaf pack they are added to and keep the spring from hitting the frame where they are very close. 
   The most important mod of all is a crossover steering kit with 4” pitman arm. 
It is available with or without a new matching heavy duty tie rod with a couple steering stabilizer options. 
    We always recommend a steering box brace to protect your frame from cracking and stiffen things up, the crossover one is different than the one you would choose if you don’t do the crossover, but as I said, this is the most important mod. 
   When doing a crossover, it’s easy and convenient to add kingpin spring eliminators, very helpful for a good steering truck. 
   We have various shocks available for the approx 4ish inch lift. 
Now to match all that front lift you have the opportunity to do the same in the rear and fine tune it to your truck. 
   We recommend a stock rear leaf.
(even softened up a little like the front, depending on your hauling goals. Softer for daily empty driving is best, and if you want the load carrying capacity back, an air helper system is perfect), 
Along with a lift block and traction bar. This keeps the ride from being overly stiff and still controls spring wrap, while effectively transferring power to the ground. 
We can make our lift block any height to level your front work, and it also has the ability to move the axle an inch rearward if necessary depending on the leaf setup used. 
   All that might sound like a lot for just a “lift kit”, but we have to modify all this stuff because no one made a lift kit of high quality back then for these trucks. 
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SKU: 67287919766

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Jonathan Robledo
Bozeman, US
★★★★★ 5
Excellent Sound Deadening Material!
Style: 10 SqFt, Style: 10 SqFt
I installed Kilmat Sound Deadening in my truck, and I’m extremely impressed with the results. The material is thick, pliable, and easy to cut to fit doors, floor panels. It sticks very well to metal surfaces and doesn’t peel, even after heating it slightly to make it more flexible. After installation, I immediately noticed a reduction in road noise and vibrations. Worth the money!!
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Reviewed in the United States on April 4, 2026
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Jare
Boise, US
★★★★★ 5
A Must Have For Car Restorations!
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
I have been installing this matting in my 74 Datsun 260Z restore and very pleased with the ease of application and overall quality. My car has bedliner coating inside and this stuff sticks extremely well and is easy to trim and shape as well. I have just started installing it and using the rollers to work it in place but I can already tell a difference with just the little bit I have added....has reduced the resonance in the metal already. It's not a fast process but know it will be very rewarding once complete.
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Reviewed in the United States on May 9, 2026
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Mike
West Palm Beach, US
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
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Reviewed in the United States on December 3, 2025
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Paul
Alexandria, US
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
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Reviewed in the United States on May 20, 2026
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Amazon Customer
Dallas, US
★★★★★ 5
Awesome product 👌
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
I love this stuff. I use it alot. Sticks great Easy to use Molds super easy Really helps with sound. Great product. I wish I could get sponsored for this product on my projects..
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Reviewed in the United States on April 30, 2026

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