1988 V3500 Crew Cab. was 2wheel drive single wheel EFI 454 400. Swapped Cummins 4bt, lord mounts, Dodge engine plate, bellhousing and input. NV4500 with GM 32 spline round pattern twin stick (ORD) 205 cast tailhousing. 1410 yokes front and rear shafts. GM Dana 60 front, 70s Chevy van Corp 14 rear with disk. 1410 gears with ARBs. 12.5 37 17 BFG AT on H2s. Wheel base 1.5" more than stock burban?, Disk Drive line parking brake, 12" slide on front shaft, Bilstein 7100, king 2.5" bumpstops in front, adjustable timbren rear overload Bump Stops. DIY4x4 B52, rear shackle and mounts + other stuff. Early 2000? GM 1/2 ton rear leafs. ORD 51" front leafs, PSE steering box ready for assist, cross over steering + other stuff. rear frame rail flattened and bobed at 4'9", Warn Zeon 12 with 3/8"x75' Master pull line, 40 gallon (31 operating) Schwan's truck fuel tank, tuffy Security console, Pro-Comp Full sweep boost, pyro, and fuel, Stewart Warner Full sweep diesel tack- info from alternater, four Corbeau Baja XRS seats, save big money carpet pad under rubber roofing floor mat. Lots of help from local professionals like, pipe fitters for welding SS, three different shops that bent tubing, machinest list is endless and Amish for bending aluminum. OMG no wonder it took 8 years to put together.