All hardware kits are not created equal.Carlisle/Altec’s hardware kits have been engineered to far outlast the timing of your fleet’s brake maintenance.Our hardware kits meet or exceed all OE specifications.We use a yellow zinc plating on our 4515Q and 4707Q kits to ensure a longer cam roller life and an extra heavy duty return spring for these shoes to deliver 20% more strength.It all adds up to a better hardware kit.Specify a Carlisle/Altec brake hardware kit on your next shoe remanufacturing order.