Bergman Auto Craft Delrin Bushings and Pivot Pin Pkg Special use code BAC10

Kern Dog said
Oddly, even with my ride height that I have in the red car, It isn't bouncy or harsh on rough roads.

View attachment 1716365564

You can see the cut down lower bump stops in the picture.
I have 275-40-18s up front on an 18 x 9. I've never contacted the fender bracing with the tire though it has caught on the wheel well lip/ moldings. Never during cornering, only during slow turns where the wheel angle is near full lock.
Regardless, if I am bottoming out, I'm not able to feel it. I agree though, if the travel is increased, there is a risk of tires contacting components that are normally out of reach.
Back on topic....I'm not familiar with the advantage of Delrin bushings. I'm sure it has been mentioned but I am forgetting it if it has been covered. Is it fair to guess that they are better than urethane?

Careful, you're comparing a B-body to an A-body. The suspension geometry is not the same (shorter control arms, more anti-dive, etc), and certainly the bodywork isn't. On my Challenger (same suspension as a B) I had to remove the inner fender braces when I was running 2" drop spindles and 1.12" torsion bars because the 275/40/17's I had were hitting them, likely a result of having an extra 2" of compression travel. Couldn't tell you if they would still be an issue with the standard spindles and LCA's, because when I ditched the drop spindles and lowered just with the torsion bar adjusters I had already lost the braces.

Checking for bottoming out is pretty easy, a small dab of grease on the bump stop is all it takes. With rubber bump stops, even with them cut down, it's not that easy to feel if you've contacted the bump stops unless you really hammer something hard (pot hole, speed bump, etc). If the suspension compresses more slowly, like it does with cornering, it can be hard to tell if you're on the bump stops unless you're pushing the car hard enough that it would keep compressing the suspension well past that point.

Delrin bushings are just the next step harder than poly bushings are. The result is that your suspension movements are even more precise, you don't have any give in the bushings themselves so the LCA pivots can't flex up or down any in the bushing. Going from rubber to poly is a bigger step than going from poly to Delrin, but it does get rid of some additional slop in the suspension movements. It also of course gets rid of more of the cushioning ability of the LCA bushings, so it can transmit more road noise. It makes having a good set of shocks more important.

mad dog said
guys, can that Hotchkis super grease be used on all of my suspension zerks... i have the greasable pins on my lowers with poly bushings but rubber and stock suspension everywhere else...In other words i want one grease for everything

Yes, you can use the super grease on rubber/stock components. Doesn't hurt the rubber, works just fine in the ball joints. It's just more expensive. I run two grease guns, one with poly grease and one with standard grease. But I also have other cars that don't have poly bushings that I maintain myself.