2360 Boswell Road Chula Vista, CA 91914 Phone 619.216.1444 Fax 619.216.1474 E-Mail tech@explorerprocomp.com PRO COMP SUSPENSION Suspension Systems that Work! Part # 51947/51947MX 6” Lift 2007 Chevrolet Tahoe 4WD Kit With Out Front Driveshaft This document contains very important information that includes warranty information and instructions for resolving problems you may encounter. Please keep it in the vehicle as a permanent record.
51947/51947MX Revised 7.31.08 Box 1 of 7-PN 51947/51947MX-1 Part # Description Qty. Illus. Page 90-3575 FRONT FENDER RELOCATION BRACKET– Drvr 1 19 18 90-3576 FRONT FENDER RELOCATION BRACKET– Pass 1 - - 90-6236 70-0563501800 70-0563001800 72-056100816 73-05600034 70-0431251800 72-043100816 73-04300034 70-0311001800 72-031100816 73-03100034 HARDWARE PACK: Track Bar 9/16” X 3 1/2" GR. 8 HEX BOLT 9/16” X 3" GR. 8 HEX BOLT 9/16” GR. 8 STOVER NUT 9/16” SAE HARDENED WASHER 7/16” X 1 1/4" GR.
51947/51947MX Revised 7.31.08 Part # Description Qty. Illus. Page 90-6514 70-0501751800 72-050100816 73-05000034 HARDWARE PACK: Diff Mount Drvr 1/2"-13 X 1 3/4" HEX BOLT GR. 8 1/2"-13 STOVER NUT 1/2" SAE FLAT WASHER GR. 8 1 2 2 4 6 6 6 11 11 11 90-6251 70-0564001800 70-0561751800 72-056100816 73-05600034 73-05600034 70-0563001800 72-056100816 73-05600034 71-100601251000 73-01008840 HARDWARE PACK: Differential 9/16”-12 X 4" HEX BOLT GR. 8 9/16”-12 X 1 3/4" HEX BOLT GR.
51947/51947MX Revised 7.31.08 Box 4 of 7-PN 51947/51947MX-4 Part # Description Qty. Illus. Page 90-3684 FRONT CROSSMEMBER 1 7 11 90-6284 70-0624501800 70-0625501800 72-06200100512 73-06200030 HARDWARE PACK: Crossmember 5/8"-11 x 4 1/2" HEX BOLT GR. 8 5/8"-11 X 5 1/2" BOLT GR. 8 5/8"-11 STOVER NUT 5/8" SAE FLAT WASHER 1 2 2 4 8 10 10 10 10 13 13 13 13 90-6498 71-100301251000 HARDWARE PACK: Sway Bar Drop 10mm-1.5 X 30mm 10.9 HEX BOLT 10mm 10.9 FLAT WASHER 7/16"-14 X 2 1/2" GR.
1947/51947MX Revised 7.31.08 Part # 90-6317 72-043200810 73-04300830 73-04300836 Description HARDWARE PACK: Spacer Mount 7/16-20 GR. 8 PLATED HEX NUT 7/16 SAE FLATWASHER ZINC 7/16 SPLIT LOCK WASHER Qty. Illus.
51947/51947MX Revised 7.31.08 Introduction: ♦ This installation requires a professional mechanic! ♦ We recommend that you have access to a factory service manual for your vehicle to assist in the disassembly and reassembly of your vehicle. It contains a wealth of detailed information. ♦ Ensure that your work space is of adequate size and the work surface is level. Place the vehicle in neutral. Place your floor jack under the front cross member and raise vehicle.
51947/51947MX Revised 7.31.08 Important! • Front end and head light realignment is necessary! Speedometer and ABS recalibration will be necessary if larger tires (10% more than stock diameter) are installed. • ⇒ Due to differences in manufacturing, dimensions and inflated measurements, tire and wheel combinations should be test fit prior to installation. Tire and wheel choice is crucial in assuring proper fit, performance, and the safety of your Pro Comp equipped vehicle.
51947/51947MX Revised 7.31.08 FRONT INSTALLATION: 1. Position your vehicle on a smooth, flat, hard surface (i.e. concrete or asphalt). Block the rear tires and set the emergency brake. 14. Using the proper tool carefully separate the upper ball joint from the knuckle. Loosen but DO NOT remove the retaining nut from the upper ball joint. 2. Measure and record the distance from the center of each wheel to the top of its fender opening. Record below. 15.
51947/51947MX Revised 7.31.
51947/51947MX Revised 7.31.08 90-3701 Driver Diff Drop Bracket Illustration 4 Drvr Side Differential Drop Bracket Install viously marked lines as shown in ILLUSTRATION 2. 26. Assemble the front differential support bracket (90-3692) using the supplied bushings (15-11148) and sleeves (90-2108) from hardware pack (906515). See ILLUSTRATION 3. 27. Rotate the front differential until the case bolt heads are oriented up. Carefully remove the factory bolts from the differential as shown in ILLUSTRATION 3.
51947/51947MX Revised 7.31.08 front mounting pockets by sliding one end of the crossmenber into the driver side mounting pocket from the outside. Push the installed end of the crossmember as far as it will go to the passenger side in the mounting pocket. Swing the crossmember up into the passenger side pocket. Center the crossmember in the mounting pockets and secure using the OE bolts. See ILLUSTRATION 7.
51947/51947MX Revised 7.31.08 Illustration 8 9/16” X 4” Bolt Mount to Lower Holes In Front Crossmember Mount Tabs Front Differential Mount Tab Install 90-3691 Front Diff Mount Tab 9/16” X 4” Bolt 5/16” X 1” Bolt 90-3691 Front Diff Mount Tab 5/16” X 1” Bolt 5/16” X 1” Bolt Finished View into the new Pro Comp steering knuckle (90-4156 Drvr and 90-4157 Pass). Make sure that the ABS wiring is oriented in exactly the same position as it came from the OE knuckle and out of the way of the tire.
51947/51947MX Revised 7.31.08 OE Bolt 5/8” X 5 1/2” Bolt 90-3688 Rear Crossmember 5/8” X 4 1/2” Bolt Illustration 9 Illustration 10 Rear Crossmember Lower A-Arm Install lower A-arm using the supplied 7/16” X 2 1/2” bolts and hardware. Torque according to the chart on page 19. See ILLUSTRATION 12. balls. 52. Install the new Pro Comp coil over shock (624000) to the coil over mount upper bracket (903712) with the supplied 1/2” X 2 3/4” hardware from hardware pack (90-6318).
51947/51947MX Revised 7.31.
51947/51947MX Revised 7.31.08 5/16” X 1” Bolt Zip Tie Illustration 14 Brake Line Relocation Bracket Install and Routing 1/4” X 1” Bolt ABS Line Front Brake Line Drop Bracket 90-3573 drvr and 90-3574 pass ABS Line Brake Line OE Bolt Upper A-arm Mount Pocket Adel Clamp 61. Be sure to re-clip the previously removed upper strut mount wiring away from any moving parts, steering shaft or exhaust manifolds. top ring of the strut spacer is facing toward the outside of the vehicle. 58.
51947/51947MX Revised 7.31.08 Illustration 16 Compression Strut Install Transmission Crossmember 90-1104 Compression Strut Mount 1/2” X 1 1/2” Bolt 1/2” X 4” Bolt 90-3688 Rear Crossmember (4) 90-2109 Sleeve 1/2” X 4” Bolt 90-3353 Nut Plate (8) 15-11148 Bushings mounting bolts. Torque to factory specifications. NOTE: It may be necessary to carefully bend the caliper banjo fitting slightly up to provide adequate slack for the brake line.
51947/51947MX Revised 7.31.08 Make sure when you install the fender bracket that the top is behind the outer fender lip crossmember. Use the supplied 1/2” X 1 1/2” bolt and nut plate (90-3353) to secure the mounts to the crossmember. See ILLUSTRATION 16. Template51007b placed up against the driver side fender wheel well Approximate Measurements 82. Rotate the compression struts up and secure them to the crossmember mounts using the supplied 1/2” X 4” bolt and hardware. See ILLUSTRATION 16.
51947/51947MX Revised 7.31.08 Illustration 19 Inner Fender Bracket #10-24 X 3/4” Bolt Bumper Inner Support Bracket Drill Hole saved OE bolt from the inner fender support bracket. See ILLUSTRATION 19. OE Clip 95. Drill three holes through the inner fender and fender relocation bracket using a #27– .142” drill bit. NOTE: Be sure the holes are centered and evenly spaced on the relocation bracket. SEE ILLUSTRATION 19. #10-24 X 3/4” Bolt Front Fender Relocation Bracket 90-3575 Drvr and 90-3576 Pass 96.
51947/51947MX Revised 7.31.08 REAR INSTALLATION: 1. Raise the rear of the vehicle enough for the tires to clear the ground and use jack stands on the frame to support the truck. Remove the rear tires and wheels. 2. Support the differential with your floor jack and remove the OE shock absorbers. It may be necessary to raise the differential housing slightly to facilitate their removal. 3. Completely remove the sway bar links from both ends of the sway bar. Save the fasteners. 4.
51947/51947MX Revised 7.31.08 Illustration 22 3/8” X 1” Bolts Passenger Side Shown. 90-3146 90-1702 2.800” This hole to be drilled to 1/2”. 9. Repeat this procedure on the remaining side of the vehicle. 10. On the rear of the drivers side frame rail, loosen and disconnect the parking brake adjustor cable connector and nut. Compress the retaining fingers on the rear cables and pull the parking break cables away from the frame.
51947/51947MX Revised 7.31.08 Illustration 24 ger side of the adapter are two holes that are used as drill guides for a 7/16” drill. Drill completely through the OE mount and install the 7/16” X 1 1/4” bolts, nuts, and washers provided. Torque these bolts to the bolt specifications in the rear of this manual. 27. Install the track bar into the newly installed adapter using the provided 9/16” X 3 1/2” bolt, nut and washer. Torque these bolts to the bolt specifications in the rear of this manual. 28.
51947/51947MX Revised 7.31.08 Illustration 26 Drivers side OE Bolt & Nut OE parking brake cable 9/16” X 3 1/2” 90-1785 9/16” X 4” 1/2” X 1 1/4” 32. After installation is complete, double check that all nuts and bolts in the front and rear are tight. Refer to the chart at the end of this document for torque specifications. Unless otherwise directed, use this chart for all torque specs. Final notes: 1.
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51947/51947MX Revised 7.31.08 Notice to Owner operator, Dealer and Installer: Vehicles that have been enhanced for off-road performance often have unique handling characteristics due to the higher center of gravity and larger tires. This vehicle may handle, react and stop differently than many passenger cars or unmodified vehicles, both on and off–road.
