I've never understood wanting 4wd in drag racing, no other vechicles in the sport that I know of has even considered it. When set up correctly after the leave the majority of the weight dist. is on the rear axle, why would you want to have the front axle pulling also? The matter of torque steer, all that extra weight, etc.. to someone that has not done it makes no since.. any of the already fast 4wd trucks has much to gain in just a 2wd conversion, getting the truck down low and losing all that unsprung weight not to metion what power is absorbed through the transfer case etc... this is obviously not a slam tward any one but just observation through the years. The few well set up 2wd trucks across the country have always left better that any 4wd truck that Ive ever seen period, and Im sure most wouldn't disagree with that. Look at Stucky's truck the maroon Armer Inc. rig, my old truck, Buckleys old 2wd, Brett's C10, and many others that Im forgetting (been out of the game for years)...at 4500# I'm not aware of any one bettering my 1.32 60's Brett's been 1.33 and Bean's been 1.34 since owning it, I think I remember Buckley going 1.36 and I'm sure Stucky is right down in this area also. The 4wd guys I've talked to many years ago were in the low 50's to high .40's running as quick as I was or faster showing their great power through the back half and mph, but why not have it on both ends and be even quicker?