It is possible to build a drag truck/ puller. May have to do some changes here and there between pulling and drag racing, but shouldn't be too major. All depends on the drive train and gearing, turbo specs, ect. Worst case senario would be to have to change turbo's. That is if you go with an automatic tranny and can still run a 4.10 or faster gear in the truck. Now if your dealing with a 5spd truck, the dual disk clutch may not allow for quick shifting on the drag strip and if you do the 4.88 or 5.13 gear swap, then the 1/8th mile maybe about all the truck would be good for. Then again I could be wrong. If your running a 6spd with the stock 3.54 or 4.10 gears, then the clutch maybe your only problem not allowing quick shifts.