Sub frame addition

[terryaGJ]

Bought a new truck which is over 3" taller than my old one, so I'm getting ready to have a 4" sub frame added to my 2010 Keystone Cougar with 11,000 miles towing on it, to get it level. At the very least I'll have new spring bushings installed. Any recommendations on what else would be good to do while it's all torn apart? Any concerns about going 4" higher on the trailer? Should end up ~13' overall hgt so that shouldn't be a problem. Thanks.

[terryaGJ]

Axles have already been flipped. Planing on installing two cross members, in front of the front hangers and behind the rear hangers. Looking at the never fail bushings vs the wet bolt bushings, probably go with the wet bolts. 16's might be in the future, don't want to replace the rims and tires just now, put new Maxxis tires on 3 yr ago so maybe in another year or 2. Thanks for the feedback.

[azrving]

Is the axle already flipped? Absolutely wet bolts, a nice addition is a Dexter Eqauflex, possibly longer stabilizers and another step. Some will also go to 16's as part of leveling up.

[SDcampowneroper]

Cross member between the rear spring hanger. Plan on blocks for the jack legs, steps and rear jacks. Raising a trailer increases side load on the spring hangers and torque to the frame. Negate that by welding in a x member between the rear hangers.

[Old-Biscuit]

Cut the spring shackles off
Weld 2" x 4" tube onto frame
Weld shackles back onto subframe with bracing and side to side lateral support tubing

Install WET bolt/bronze bushing set