Redline Trailer Suspension - Leaf Spring Suspension - APT1 Review Video

For a disc brake model with an electric reverse lockout solenoid you can use #099-175-20.

The amber side marker lights and the license plate light on a trailer would need to be ran to the running light circuit like you mentioned. This is typically the brown wire. I attached a diagram that should be helpful as well.

To get the amount of lift you want and having tandem axles, you will need QTY.3 of the Correct Track Trailer Alignment and Lift Kit #LC87120. This will cover all 6 hangers and will give you 1-1/4" or 2-1/4" of lift. In combination with the…

I have a set of leaf springs for your Lippert Axle they are 6-Leaf Double-Eye Spring for 4,500-lb Trailer Axles - 26" Long item #e27SR. You will want to measure the spacing on your mounting brackets to confirm compatibility. The length from…

Yes, if you had the longer hangers from the kit #APT8 installed towards the front of your suspension instead of the middle then it will cause your trailer to ride weird and components will wear out prematurely. You'll need to place those longer…

The tandem axle version of trailer suspension hanger kit #APTT1 is actually #APT1. I have also included a link to all of the tandem axle kits we have.

For your double eye springs that are 25-1/2 inches, it is likely your hangers are 29-1/2 inches apart on center and your springs most likely were originally 25-1/4 inches as they will stretch slightly over time. For instance if you were to use 25-1/4…

It's not uncommon for a trailer with a 29-1/2 inch axle spacing to use either 7-3/4 inch or 5-3/4 inch (or similar) equalizers but the shorter ones are more commonly used with the 25-1/4 inch leaf springs, like the ones you have, designed for up…

There is no definitive guide to the installation of the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs part #APT8. It is designed as a universal tandem axle trailer hanger kit. It can be used in many different situations. Basics are the…

The equalizer on your trailer suspension needs to be able to move, you might have leaf springs that are too short or your spring hangers are too far apart. Typically when people have this problem the solution is to have the spring hangers brought in…

I am happy to help! Starting with the two holes in the shorter hangers included in the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/2" Center #APT8 you were looking at. Those holes are not for bolting but…

The Tandem-Axle Trailer Hanger Kit for Double Eye Springs #APT5 may have the correct equalizer but you will need to measure the current equalizer to find out. The length from the center of the left-most eye to the center of the right-most eye of your…