LCA, UCA, PHB, OMG!
#13
This article provides an explanation of the various parts
http://www.cherod.com/mustang/HowTo/LCA%20_adj.htm
http://www.cherod.com/mustang/HowTo/LCA%20_adj.htm
#15
Finished up late Sunday night. The only real problem I ran into was when mounting the new UCA bracket. Three bolts, one under the rear seat and two from under the car. One of the two just wouldn't go back in. Man, I cranked on that thing and it's a couple threads from being snug. Now it wont back out either so I am kind of stuck. I guess I'll have to get a couple tack welds on that side to ensure it's secure. I really don't think it's going anywhere though.
I took a little test drive anyway and I have to say the whole car seems much tighter and responsive. You can really feel the torque being applied to the ground now. There is more road noise though. Smooth roads are fine, sounds like stock. It's the cracks in the pavement that get transmitted through the rear end. Not unbearable by any means. Instead of a dull thunk when you pass over a crack, it's more of a crisp snap.
I have noticed a bit of a clunk if I shift hard or decelerate/accelerate. It might be that UCA bracket flexing but I'm not convinced yet.
I took a little test drive anyway and I have to say the whole car seems much tighter and responsive. You can really feel the torque being applied to the ground now. There is more road noise though. Smooth roads are fine, sounds like stock. It's the cracks in the pavement that get transmitted through the rear end. Not unbearable by any means. Instead of a dull thunk when you pass over a crack, it's more of a crisp snap.
I have noticed a bit of a clunk if I shift hard or decelerate/accelerate. It might be that UCA bracket flexing but I'm not convinced yet.
#16
Did a little crawling around under the rear end last night. Everything seems rock solid. I thought it might be the 14mm bolt 16mm hole issue, but the UMI UCA Bracket and UMI UCA Arm have the proper sized hole for the stock bolt. With the car in gear, not running of course, I can rock it back and forth a couple inches. Clank, clank at each end of travel. Sounds like it's the rear end gears meshing. Is this just driveline slop? Would re-bulding the rear end tighten this up? I have been considering a one piece aluminum driveshaft too. I am afraid to even get on it or shift hard right now.
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