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oops,question answered. I think the offset greatly exaggerates the feedback he is getting. So does the wider tires. Another thing,how much angle is in the steering shaft uj/uj's? Are they timed correctly?
Quote from: fabr on February 22, 2018, 08:18:59 PMoops,question answered. I think the offset greatly exaggerates the feedback he is getting. So does the wider tires. Another thing,how much angle is in the steering shaft uj/uj's? Are they timed correctly?all good questions however i didn't ask but based on the pics close to min back space which i belive is 2 or 2.5". we did discuss clocking/timing the u joints on the steering shafts, he didn't know but does now. yes i agree that will help clocking/timing will/could help. another thing he said i forgot to mention is that when he drops air psi to 8 psi the effects are greatly reduced. again i consider this feed back up through the steering wheel, if using this term correctly so if not please correct, as the purpose of this forum is to get it correct!! i do not know the steering angle on the steering u joints either. now getting the alignment correct will not have a significant effect on feed back imo but may help to reduce it. based on the pics as well as knowing for sure that the spindle i use ( custom built for me by doug heim btw so credits to doug) do in fact have 10* sai. as such the scrub angle is based on a 31" tall tire on a 6" wide spindle mount rim so in other word center mounted. brakes will move the wheel out so then on say a 5.5" ( more common) a 3.5" back space would be more appropriate. that being said customer that purchase through sand parts.com don't know this as dale doesn't know it. customers that purchase direct via dts do know this as i inform them of this before wheel purchase. i run a 5.5" cms rim with 3.5 back space on 9.50 dirt tires and the 8.80 razor backs. so i must include that these front ends are designed with 10* caster. the spindles ship with 3- 1/8" thick washers zip tied to a good starting point. these washers are two fold.......for quick adjustment of caster with out loosening heims like shims. the washer on the steering heim allows up to 1/8" shim top or bottom for tie rod placement for6* or 8* caster. i think most of us know what 1/8" up or down on tire rod location does to bump steer when pushing travel to its extreme limits!!!! i have tested to know that 8* to 10* work just fine. i know the " industry ideal stated" is 4-6* but i pre fer 10* so that is how i have always set them up. i feel no diff between 8* or 10*. this customer had set them at 6*. again though he is only using 18" travel so it is minimized and seems to be working on the bump steer front. i told him to set at 8* then try 10* and report back. so he also knows now that one has to set alignment with the wheels off the ground lol but he also discovered that caster on 1 spindle is 6* and 5* on the other. said something must have shifted when setting. this could be true but at the same time when we set these numbers with all bolts loose then when we tighten things move in diff directions and can make unwanted changes. i stress to triple check tighten bolts and re check. simple adjustment to make if once you know what direction every thing is pulled upon tightening. getting the alignment set just right takes time and patience lol unfortunate i don't practice what i preach as i set mine close 5 years ago and have checked it once since. i know it's " good enough" lol and tracks very well at 80+ mph on the hwy ........don't anyone run them down the hwy, were not designed for that and it's illegal. luckily i don't live in a town or city so just have combines and tractors to pass and waive at if you notice the rotor appears to be flush with the inside of the rim. the hub isn't much farther forward or atleast on my front brakes.
agreei always lift mine off the ground to set it all. simple to do and always an equal starting point. everything starts with proper alignment and no denying that but.....that still wouldn't reduce or remove feedback to the steering wheel. not sure there is any way to do that with out a shock dampener like the stock vw used but def agree higher offset tires and wider tires will exaggerate it. wonder if longer steering arms on the spindles would reduce that via leverage