Chevrolet/GMC 2013 DURAMAX Diesel Owner's Manual Page 1

3651 N. Hwy. 89 • Chino Valley, AZ 86323(928) 636-70802011-2013 CHEVY/GMC2500HD/3500HDDURAMAX DIESEL PICKUP (New Body Style) 3” BODY LIFTINSTALL

102011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Pull some slack in parking brake cable. Clamptwo cables at cable housing where indicated byarrow

112011 Chevy / GM 2500 & 3500 Diesel-Kits 10253D. Rear of vehicle1. Fuel fillera. Remove fuel cap, three bolts, and fuel filler frombed.2. Rear bu

122011 Chevy / GM 2500 & 3500 Diesel-Kits 10253a. Loosen but do not remove, core support bolt andthree cab bolts from drivers side cab.b. Remove c

132011 Chevy / GM 2500 & 3500 Diesel-Kits 10253a. Repeat above steps for the cab driver side.b. Adjust cab to bed clearance as needed usingmeasure

142011 Chevy / GM 2500 & 3500 Diesel-Kits 10253C. Rear of vehicle1. Install rear bumpera. Mark, cut, and bend crossmember for spare tirecrank tube

152011 Chevy / GM 2500 & 3500 Diesel-Kits 10253e. Position two kit brackets (bumper, rear) ontobumper support against stop.f. Install bumper suppo

162011 Chevy / GM 2500 & 3500 Diesel-Kits 10253k. Drill eight 1/2” holes through bumper support atmarked locations.l. Install bumper support onto

172011 Chevy / GM 2500 & 3500 Diesel-Kits 10253s. Plug license plate light harness in at crossmem-ber connector.3. Fuel fillera. Install fuel fill

182011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Relocate parking brake cable into kit parkbracket and mount using kit 7/16” hardware. .c. Insta

192011 Chevy / GM 2500 & 3500 Diesel-Kits 10253a. If possible, install four harness clips on frameand wheel well.b. If possible, install two brake

22011 Chevy / GM 2500 & 3500 Diesel-Kits 10253Before Starting Installation1. Carefully read all warnings and instructions com-pletely before begin

202011 Chevy / GM 2500 & 3500 Diesel-Kits 10253c. *Measure and Cut* O.E. Flex Hose. *Measureand Mark* 3/4” from EACH end of the FlexHose. *Careful

212011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Install ground strap on stud with nut.4. Install kit steering extension.a. Place a few drops of

222011 Chevy / GM 2500 & 3500 Diesel-Kits 10253d. Assemble three kit brackets, upper fan shroud(left, center, and right) with two kit bolts (1/4”

232011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Position bottom fan shroud in vehicle and restbelow lower core support.c. Install upper fan shro

242011 Chevy / GM 2500 & 3500 Diesel-Kits 10253g. Mark & Drill four 1/4” holes into core supportusing kit lower fan shroud plates (assembly)a

252011 Chevy / GM 2500 & 3500 Diesel-Kits 10253F. Front of vehicle1. Transmission cooler (If so equipped)a. install two kit 2” studded drop bracke

262011 Chevy / GM 2500 & 3500 Diesel-Kits 10253c. Install frame bracket onto kit brackets (bumper,front) with two kit sleeves (.75” OD x .532” ID

272011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Position grill on core support and install six clipsand four bolts in core support and front fen

282011 Chevy / GM 2500 & 3500 Diesel-Kits 10253d. Start vehicle and check the steering in bothdirections to ensure that there is no bind. Checkclu

292011 Chevy / GM 2500 & 3500 Diesel-Kits 10253PARTS LIST KIT 10253QTY DESCRIPTION4 Bolt, 1/2 x 3”8 Bolt, 1/2”-13x5-1/2”30 Bolt, 1/4 x 3/42 Bolt,

32011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Remove four bolts, six clips, and grille from coresupport. Some GMC models may have extraclips.2

42011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Remove plastic cover from push clip, lower radi-ator hose and vehicle.c. If equipped, remove clip

52011 Chevy / GM 2500 & 3500 Diesel-Kits 10253B. Engine Compartment1. Air intakea. Loosen clamp from air baffle assembly. Removewire harness clip

62011 Chevy / GM 2500 & 3500 Diesel-Kits 10253c. Remove four pop-ups and upper fan shroudfrom vehicle. d. Remove computer wiring harness from harn

72011 Chevy / GM 2500 & 3500 Diesel-Kits 10253c. Remove clip and harness from engine mountedbracket.4. Intercooler piping drivers sidea. Loosen cl

82011 Chevy / GM 2500 & 3500 Diesel-Kits 10253b. Remove harness from clip and bracket.c. Remove two clips and harness from cover andinner fender.7

92011 Chevy / GM 2500 & 3500 Diesel-Kits 10253d. Carefully bend power assist pressure line uptoward hood, to clear accumulator on brakehydro boost