Replacing/Upgrading The Suspension On A 2007 Colorado Tandem Axle 5th Wheel With LRE Suspension

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Question:

I have a 2007 Colorado 32’ 5th wheel I want to upgrade the suspension. I believe it has the LRE suspension with rubber shear springs. My research shows I should get the MR79ZR and the MR79UR shear springs. I would also like to replace the leaf springs with the e34SR 5 leaf When I measured leaf springs they were 26” center of hole to hole while on the trailer .there are 4 leafs on springs I’m not sure if these are the correct parts I should order any help would be appreciated Thank you

asked by: David W

1

Helpful Expert Reply:

It sounds like you are definitely on the right track here. The # MR79ZR is indeed the correct suspension upgrade kit for your 2007 Colorado 5th wheel with LRE suspension. Moryde makes a fantastic suspension upgrade kit. The heavy duty shackles and wet bolts are highly durable and will last a very long time as long as you keep them properly greased. The shear spring # MR79UR is also correct for this setup.

The leaf springs might be a bit more tricky, since you are measuring them under a load. Leaf springs can extend up to 1" when flexed. So it certainly stands to reason that the # e34SR will be sized just right. In a perfect world, we would have you jack the trailer up and measure the spring without a load to get a more accurate measurement. That said, I believe it is safe to say that the # e34SR will fit nicely. This spring is a 5 leaf instead of a 4 leaf, but that will not be an issue at all. The spring will be 3/8" thicker, and it looks like your u-bolts will be plenty long to accommodate this. We do offer new u bolts # CE23003, if you would like to replace them while you're at it.

expert reply by: Jesse M

1

suspension pic 1
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suspension pic 2
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suspension pic 3
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camper tag
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Answer 1

The best leaf spring option we have is the part #e28SR which has a 5,000 lb axle capacity and is 25-1/4 inches in length. Old springs do tend to stretch a bit over time but in your case this capacity matches what you are in need of and is a close…

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Answer 2

Thanks so much for the photos they were super helpful. What they show is that you have the MORryde LRE suspension with the shear spring, and the part number you mentioned confirmed that as well. We do have the correct upgrade kit for your camper,…

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Answer 3

The Dexter 072-078-00 is a 2,200 lb capacity leaf spring. You can use a higher capacity leaf spring, however it won't increase the capacity of your trailer as the axle is still rated for that max capacity of 4,400 lbs. My recommendation for…

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Answer 4

To correctly measure a leaf spring, you'll want to jack the trailer up on jack stands so the axle is hanging freely, then measure directly across from the center of one spring eye to the other, as shown in the provided diagram. The height of…

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Answer 5

Those may not be the original springs on your Springdale. According to ALKO the T52 axle would either have a 5 or 6 leaf spring at a length of 26 inches. To be accurate the springs should be measured with no weight on them because they will otherwise…

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Answer 6

As long as the new equalizer has the same hole spacing as the existing equalizer, it'll work just fine. You'll also want to make sure the height of the equalizer is also the same. Put a ruler across the center of the two bottom bolt holes,…

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Answer 7

Both the Equa-Flex Cushioned Equalizers - Double Eye Springs like #LC279687 and the E-Z Flex Heavy Duty Rubber Suspension System like the #K71-653-00 will provide an upgrade over the standard cast equalizers that most likely came on your trailer.…

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Answer 8

We do have the Replacement Shear Spring Bracket for MORryde Suspension Upgrade Kit #MR96DR. This is the same as the LRE43-001. This is a single bracket so you will need to order a quantity of four.

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Answer 9

Absolutely, the Dexter leaf spring part 072-098-00 is a double eye spring, designed for 7,000 lb axles, with a 25-1/4" eye to eye measurement. The closest leaf spring we have to that is the Double-Eye Spring part #SP-198275 which is a double eye…

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Answer 10

So first I want to verify how you measured the leaf springs. On the etrailer Rust-Resistant 6-Leaf Double Eye Spring for 6K Trailer Axles #e88SR the 26" measurement is from center of leaf spring hole to center of leaf spring hole when the spring…

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Answer 11

The 4-Leaf Double-Eye Spring part #e44SR is what I recommend using to replace your Dexter Leaf Spring 072-078-00. It's the same length but a slightly higher capacity, 4,400 lbs vs. 5,000 lbs which is not much so it won't really affect the…

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Answer 12

Hello David, I can definitely point you in the right direction. The Lippert 5,200 lb axles will use the standard 12" x 2" brake assemblies. For that I recommend the etrailer Rust-Resistant Electric Trailer Brakes #AKEBRK-7-D. This comes…

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Replacing/Upgrading The Suspension On A 2007 Colorado Tandem Axle 5th Wheel With LRE Suspension

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