Greater negative caster? I always thought it was more positive caster that was needed. How much negative caster do you have?Hi guys, I I rarely if ever post. But read many of the threads on this forum in particular that one’s relating to 4 x 4 vans. I too have have a coil spring 4 x 4 van that was built using a mix of U-Joint parts and other off-the-shelf parts. As soon as the van was drivable there was the infamous DW. But was quickly and easily remedied by simply adjusting/adding greater negative caster. I my case, granted this was quick and easy as I have a 4/5 link system. If searching through the Internet for answers for DW the vast majority of information is basically the same as the comments here in this post, throwing parts at it, adjusting toe etc though if you dig deeply you will find some info that caster is the culprit in modified coil sprung vehicles. I don’t believe that worn parts are the inherent cause of DW on modified 4x4 coil sprung vans/vehicles, its a caster adjustment. Finally my observation on dual steering stabilizers, why demonize a product that is proven to help steering issues related to lift and big tires. To the OP I hope that this helps solve your DW! To MG you were my inspiration to go coil sprung, thank you! My coil sprung van rides almost as smooth as my old independent Toyota PU.
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edit: i guess you didnt say you actually had neg caster, but whats your caster now? whats your lift/tire size?