Redline Trailer Suspension - Leaf Spring Suspension - 115919 Review Video

The standard diameter for trailer leaf spring bolts is 9/16 inch which is why the part #E4139 and all similar options have this hole size. We don't have anything with a smaller diameter but my guess is what you have is actually 9/16 inch.

Hey Rob, the bolts that come with the equalizer kit part #AP233 that you referenced are Grade 5.

With 8 inches center to center hole that's a good start as these will flex between 7-1/4 to 8-1/4 measurements however you also may make sure you have the 35" center axle to center axle spacing and have 9/16" bolt holes. The #K71-657-00…

I spoke to my contact at Dexter Axle and they informed me that you may have the incorrect kit. There are currently two different E-Z Flex Triple Axle Suspension Kits for triple axle trailers which will depend on axle spacing. For example, if your…

Both the MORryde Rubber Equalizers #MR87ZR and Dexter E-Z Flex Suspension Kit #K71-652-00 are achieving the same result. They are doing so with slightly different designs but end up with the same result. I recommend using the Dexter E-Z Flex…

I went out into our warehouse and pulled a Front/Center/Rear Hanger for Double-Eye Springs, part #E4139, and measured the outside width of it. It measures 2-5/16 inches from the outside of one side of the #E4139 to the other side. Check out the…

The axle is self-aligned by the spring center bolt so there's no need to slide the axle. Axle manufacturers weld the spring seat in a specific location to align perfectly with the center bolt/nut on the leaf spring. Once all parts are assembled…

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

I measured the thickness of center hanger #115919 using digital calipers. The steel used to make it is 0.36 inches thick. I have linked a video review of this hanger for you.

Although the wet bolts have splines to help prevent them from rotating (see attached picture), it is not crucial that they remain still. If they feel like they are tightened properly and they don't seem to be worn out then you will be good to go.…

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

It's not common for the spindle number to be printed anywhere on the axle. That said, if you're looking for new bearings/races and seals all you need to do is note the capacity or measure. The easiest method would be to crawl under the…