bbutler, I bought my truck new in july of 98. I had the dealer install the bd-exhaust brake a week after I bought the truck. He knew that we would be towing a horse trailer and almost insistead that we buy the brake. I thank him everytime I see him now as it is the most valuable option I have. I believe it should be a factory option! We use it daily.
DAVE
98. 5 24V, 5sp, QC-SWB, BD-Exhaust brake, BD-exhaust, 275's,VA-box,(soon to be power edge comp), gauges,rancho9's.