I have a 99 Ram 2500 4X4 with the V10. My master cylinder is leaking into the brake booster so now I need to replace both. I have searched dozens of auto part stores online and can't find the correct booster. All I have seen is the hydro boosters. I have the vacuum booster. Is it not common to have the vacuum booster in this truck? Any one know where I can get the correct vacuum booster?