Any opinions on replacing the large end radius bushing with a polyurethane one such as this?
Should be OK, depending on the equivalent shore hardness you might find there is an increase in the transmitted road noise.
The grease when installed eventually leaves & they will squeak and as said they are a harsh ride. Mine pulled apart every when I jacked the car up. I made stainless covers & tacked welded to the bottom to the arm. Works great. No I wouldn’t install them again, go with the stock bush
Thanks, I will stay with the stock, and delay the spend.