1989 Peterbilt 357 Suspension Enhancement

Since you have a wheelbase/axle spacing of 38 inches the correct hanger kit for slipper springs would be the part #HAP-105-205-01. And then for a 7k trailer axle the u-bolt kit…

For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the…

It sounds like the purpose of getting the air helper spring would be to counteract the 1 inch compression…

Thank you for purchasing from etrailer! You did a great job selecting compatible parts. When using Leaf Springs #e64SR with the #AP233 Equalizer Kit and the #H248 Hanger Kit, there should be…

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and…

What…

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

Your trailer looks awesome! The Road armor equalizers #LC696740 and Equa-Flex Cushioned Equalizers #LC279687 are both pretty similar in performance even though the Road Armor has two dampers. The main difference is the size of the equalizers. The…

From what I could find it looks like your 122R (red) and 122Y (amber) lights measure…

I do have an option for you, but we do not carry the Dexter 072-027-00 you mentioned. However we do have the etrailer Double-Eye Spring for 7,000-lb Trailer Axles -…

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

For a standard replacement equalizer for your Dexter 13-122 equalizers…