In Reply to: Guys- will RD springs work w/Bil HD shocks? posted by Tim Collins on September 14, 1999 at 11:54:11:
Actually, you will need the Sports because they are shorter which is necessary with the shorter springs. I just did the same thing to my 535.
The HD and Sports are valved identically according to other sources, just that the Sports are physically shorter for use with lower springs.
Refer to the Turner Motorsports page, http://www.turnermotorsport.com/catalog/bilstein/bilstein_guide.htm for the whole scoop.
By the way, the RD springs with the Sport shocks is a really nice combo. Ride quality is fine and the handling is significantly improved. You'll like it.