Posted by Vaughn on Saturday, October 11, 2008 at 11:17:44 :
After researching, it appears that the Raybestos MK1 and NAPA 1 master cylinder kits for the early MC (WC 3/4, 1.5, WDX through C4) trucks are no longer being made. There are still some in NAPA stores/warhouses, but once they are gone that's it. I suggest you consider buying one or two and put in your spare parts box. Parts are sealed in plastic for long shelf life. NAPA does have a locator for inventories in other store/warhouses and you will pay the UPS cost if ordered.
The MC544 is still being made, but at a cost of $175 plus.
Wheel cylinder kits (Reaybestos WC6) are still in production.
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