I have always used the old Delco-Remy starters that came stock on these trucks, but have in recent years gone through a couple. I seems that this is another case of, "They just don't make 'em like they used to!" I also have headers on all of my rigs and accessing that starter is not fun. It is also pretty darn heavy. Jump to a couple of years ago when my last "stock" starter failed and left me stranded about 70 miles from home. I then bought one of the RobbMc starters and I would never buy a different starter ever again! This starter is only 8.5 pounds and spins the engine over much faster than a stock starter ever could. It also will continue to spin the engine over fast, even if your battery is fairly low. The stock starter is nearly 20 pounds and massive in size. This starter is relatively tiny and provides a lot of space to headers, even if you don't clock the solenoid to the bottom. I didn't. You will pay for that starter. They are about $300 vs. the $81 or so for a new ACDelco stock style starter, but it is made in the USA, they solidly back their product and will rebuild anything they sell, and in my opinion, well worth it to save from the hassle of replacing your stock starter frequently.