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Suspension Upgrade for Tremor with Tune M1 Camper / 700 lbs of constant load in bed

TurboZaz

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Feb 8, 2026
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Location
Austin Texas
Military
Army
Current Ride
F-150 Tremor 402A
Current Ride #2
Prius
Hello everyone!

I've been browsing these forums but really haven't found an answer to my question yet. I am planning to buy a TUNE outdoors M1 Camper for my 2025 F150 Tremor. It will be about 700 lbs of constant weight in the back (after buildout i expect). I plan on using this for overlanding so I expect off road driving through some tougher trails/terrain other than forest service roads and paved roads. I have heard about the RAS (roadmaster active suspension) but have my concerns with bump stop interference and loss of articulation when off roading. Currently I am on stock suspension. I have looked into Icon 2.0 with possible Dobinsons springs is was wondering if anyone else runs this same setup. The goal would be to maybe add 1-2 inches of lift and to prevent bottoming out or too much sag. Leveling would be nice for overall aesthetics but not a priority. I'm curious if there are any other Tune M1 owners in here that have upgraded their suspension and how their setup has worked out for them and their capabilities. If you don't have a Tune, but have a similar load I would also value your input.

Thank you!
 
Icon offers a spring upgrade for the rear as well thats just prior gen Raptor leafs from the sounds of things...couple folks here have it if memory serves. Prob better to go airlift/daystar cradles if you want/need some kinda rear help and dont wanna lose too much articulation. Lotta folks here (myself included) running that setup without complaint.
 
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