A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
No Touch Technology: Increased shut height so when springs are compressed they don't touch thus eliminates spring clash. Thus increasing durability and life of the part.
Up to 3 lbs lighter than competitive units.
Increased reserve stroke offering you more force when you need it most - during high braking duty cycle conditions.
Exceeds FMVSS121 hill hold requirements.
These improvements and more have increased the life of the spring brake 3 times that of competitive products.