SEAFISH,
I have to agree with what you said about the Defiant product. The BD product, that I mentioned earlier, is a 'knock-off' of the SSI priduct, I believe. Probably strong but, I wonder about the strength of the trailing arms.
As I recall, BOB4X4 expressed some concern about flexing or warping of the Defiant product in extreme use. It is a flat piece of steel with one bend, for added strength, I believe. It looks pretty strong, to me. Nice build quality, also.
Joe F.
Joe, I believe that the primary job of ANY steering box support is to do just that--
Support the steering box sector shaft so that NOT ALL of the stress and torque from the movement of the weight of our very heavy CTD front ends is transferred directly to the steering box, thus protexting the SB from premature wear and damage.
That being said, many people feel, myself included, that there is ALSO an advantage to gaining more frame strenght but tying the frame together at yet another midway point. HOWEVER, unlike some people and Bob 4x4, I also believe that the frame should probably be able to flex a little, as designed, and this is actually where the Defiant may have a slight advantage. I apologize that I cannot find the links anymore, but there have been at least one and maybe two threads here on TDR that documented fatal damage to the steering box from even a light slide/side impact with a snow bank. If I remember right (don't quote me, but try to find the thread :-laf:-laf) the owner did indeed have a box beam SBS installed. He was NOT blaming the SBS for the damge, but it occurred to me then that some flex may well be OK, as long as the SBS does it's primary job of supprtoing the SB, which CLEARLY the Defiant SBS does extreemly well, given all of the positive feedback about improved handling that it DOES get.
As a final point (phew

), while the actual beam of the box beam type SBS is CLEARLY somewhat less flexible then the Defiant plate, the actual attachment tabs are the same gauge as Defiants--1/4" plate steel with 2 bolts, so it may well be argued that in reality it is just as flexible, point to point, as the Defiant. It would defintely be intersesting AND telling to simply place one end of each type of SBS in a vice, and then try to torque/twist the other end and see/feel what happens. One could even put a lever on it to get more leverage if one wanted to. I imagine that neither type would move or flex much at ALL!!!
Personally, I would not trade my Defiant for another type--it is simply well made and well designed, and I like the fact that Paul, while he may have been inspired by the SSI, did not simply clone it like others have done, but actaully designed what may well be a superior product. It certainly is EXTREMELY well made, well finished, well packaged, and covered by excellent customer service. and does the job it was designed to do extremely well.
Like I said before, what more could one want from a product??