Will The RoadActive Suspension(RAS) Work With Timbren Jounce Springs on a 2018 Ford F-150?

Published 06/22/2023

Products Featured in This Question

RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty

(597)

$589.00

RoadActive Suspension Custom Leaf Spring Enhancement Kit

(511)

$539.00

Timbren Rear Suspension Enhancement System

(6408)

$269.36

Question:

I bought and installed a Timbren suspension system for my truck 2 years ago. I am considering the RAS system. Do I need to remove the Timben system and replace with the original bump stops? Or Can I just leave them and add the RAS system? Or, should I stay with what I have? Everything I have read indicates that RAS would be a much better solution. Thank you

asked by: Jeff O

Expert Reply:

I do recommend removing your Timbren Rear Suspension Enhancement System # TFR1504E before you install either the 2,000LB # RAS3611-Y or 3,000LB # RAS3611-YHD RoadActive Suspension. The RAS mounts outside your u-bolts which is where the Timbren spring comes down to contact the axle. While there may be a small gap currently your rear end can float a bit side to side which may cause the jounce springs to contact the mounting arms which could damage both units.

I personally feel the RAS is a far superior system over the Timbren. The RAS gives you adjustability and does not have the harsh engagement you get when the Timbren comes into contact with the axle.

expert reply by: Bud M