Rusty this your link is to a thread about a 602 that is NOT the crate ran in IMCA modifieds this thread is about!!!
Heres a link to a thread about the actual crate used in IMCA modifieds.
http://www.4m.net/showthread.php?349...behive-springs
Ive been on way way way more heavy tracks this season than dry, around Iowa. Maybe they didn't get the crate memo you guys are always claiming is going around for track prep?
I had 60 nights on that crate when I sold it with a car, it has about 100 on it now according to the new owner. And local late models around here that have ran the same crate but more rpm have ran them over 200 nights...