Originally Posted by Vanguy
Thanks. So is it common to use the radius arms from an F350, the radius arms from the van or fabricate new radius arms?
The TTB D50 F250 didn't have radius arms. I would advise against using the F150 D44 under a van. The newer SuperDuty radius arms won't work with the travel-path of the TTB (since it effectively travels in an arc, vs the mostly linear path of a solid axle). Best bet is modifying E-series arms to fit.
What do you want to accomplish, and what year/make/model/motor are you trying to stuff it other. I really like the TTB setups when they're done right, but doing it right isn't easy, and there's some trade-offs. Ramsey (Agile) used the TTB D50's as-in by adding perches and brackets, but QuadVan built them spec using longer axle shafts and moving the axle brackets to widen the track to match the original E-series track width. Both of them installed camber kits. Another reason to reconsider is the smaller brakes on them, compared to stock modern vans and 4x4s using the SuperDuty axles.