Spindle completely separated from balljoint!!

[Marcus SC&C]

I`ll be following this closely. It`s very possible that it`s not a spindle or A arm design/construction issue but a case of good parts not working and playing well together in a particular set up. The ridetech arms are good pieces but are optimized for ridetech`s tall spindle which has a 2" drop. With L&H non drop spindles and a car run at the same final ride height as it would be with Ridetech 2" drop spindles the angle of the upper A arms will be about 14* more steep. That uses up almost half of the ball joints travel,making it very possible that it could bind in bump. That would slam the ball joint taper insert back and forth in the spindle like a hammer (note the bore in the spindle appears to be ovoid now) and could cause it to loosen up and release. The lower A arms have no bump stops,nor do the coil overs (just a polymer ring to avoid shock damage) so the suspension can pretty much travel until the car hits the ground. With an all Ridetech set up with their spindles the headers would likely hit the ground before you over travel the ball joints so it`s not an issue and the lack of bump stops allows people to lower the car more for shows etc. but with the non drop L&H spindles the additional angle could easily put things in a bind. My guess is that a set of correct height bump stops or even a few more clicks of compression dampening might have avoided the problem even with mixed application parts. Luckily this type of failure can only separate when the wheel is off the ground and hanging which is why the car still drove fine. If it hadn`t been jacked up it may have continued to work okay until it rattled enough to invite inspection. Spacepirate, even though you didn`t buy your parts from us please feel free to give me a call. I`d be happy to go over your set up with you. Mark SC&C

[vintageracer]

We all would like to know!

[MrQuick]

I`ll be following this closely. It`s very possible that it`s not a spindle or A arm design/construction issue but a case of good parts not working and playing well together in a particular set up. The ridetech arms are good pieces but are optimized for ridetech`s tall spindle which has a 2" drop. With L&H non drop spindles and a car run at the same final ride height as it would be with Ridetech 2" drop spindles the angle of the upper A arms will be about 14* more steep. That uses up almost half of the ball joints travel,making it very possible that it could bind in bump. That would slam the ball joint taper insert back and forth in the spindle like a hammer (note the bore in the spindle appears to be ovoid now) and could cause it to loosen up and release. The lower A arms have no bump stops,nor do the coil overs (just a polymer ring to avoid shock damage) so the suspension can pretty much travel until the car hits the ground. With an all Ridetech set up with their spindles the headers would likely hit the ground before you over travel the ball joints so it`s not an issue and the lack of bump stops allows people to lower the car more for shows etc. but with the non drop L&H spindles the additional angle could easily put things in a bind. My guess is that a set of correct height bump stops or even a few more clicks of compression dampening might have avoided the problem even with mixed application parts. Luckily this type of failure can only separate when the wheel is off the ground and hanging which is why the car still drove fine. If it hadn`t been jacked up it may have continued to work okay until it rattled enough to invite inspection. Spacepirate, even though you didn`t buy your parts from us please feel free to give me a call. I`d be happy to go over your set up with you. Mark SC&C

seems this post could explain it.