Mahindra 7520, Mahindra 3215HST, Case 580 extendahoe, Case 310 dozer, Parsons trencher, Cat D6,
Looks like a Gannon to me, I have the same unit other than mine is 6' wide. You are going to be hard pressed to find the other helper spring and housing that are missing though. I happen to know of a guy that has one. I made mine hydraulic actuated :thumbsup: because I had the same problem, only 1 good spring.