I'm curious as to the source of the OP's bushings. My experience is that factory rubber is the only way to go. My front sway bar is new-to-me, a T-sedan transplant and much stiffer than the wimpy one the '95 E300 came with. The rubber is all new factory parts and there are no squeaks.

Jeremy

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970