Broken Varishock

[NickChassisworks]

The most likely scenario is since the spring is both to long and to soft it is over compressed and has allot of stored energy, like you might set a front drag shock up. Now you’re driving the car with all this stored spring energy and every time you take a corner the car has excessive body roll. Meaning one spring compresses easily, for lack of rate, and the other releases the stored energy real hard over extending the shock. When you over extend a shock enough times you can blow shocks apart.
Behind the closure nut is a curved plate called the rebound plate. The curvature of this plate is what loads the closure nut and keeps it tight. When you over extend the shock the piston hits the back side of this rebound plate. When the rebound plate gets hit enough it starts to flatten out thus unloading the closure nut and allowing it to back out and eventually the shock comes apart. This is, at this point, speculation. Until we see the shocks it’s hard to say exactly what happened.
This system uses a 12” long 200lb spring, on average. I am the VariShock guy at Chassisworks, meaning anything that comes up VariShock comes through me and I have never seen a damaged shock body from a flexing spring, but I am glad to look into that issue. As far as shock angles our cantilever system for Mustang lays almost flat, and virtually every triangulated system uses an angled shock for proper Pro-Touring performance.
Call me and we can get you an RMA to have both shocks looked at and repaired. I will even warranty the damaged shock for you, but we need to look at the numbers on shock and spring lengths both compressed and fully extended. (See attached work sheet)

(916)290-7612 Nick Spinelli