Blue Ox Trailer Hitches & Towing Installation Instructions...If a bolt is lost or in need of...

BX17312016-2018 Chevy Silverado 1500

2016-2018 GMC Sierra 1500 (Includes Denali)2016-2018 Chevy Suburban Z71 (No ACC)

2016-2018 Chevy Tahoe Z71 (No ACC)Installation Instructions

Attachment Tab Height: 18”

Attachment Tab Width: 32-1/2”

1. Blue Ox® towing products and accessories are intended to be installed by Blue Ox® Dealers who are familiar with our products and have the equipment and knowledge necessary to do “fit work”.

2. Many Blue Ox® baseplates are designed touse existing holes and hardware to mountthe baseplate to the towed vehicle. Even though bolts are there, do not assume they are adequate for baseplate mounting. Always use the hardware supplied in the hardware kit and existing hardware as specified in the installation instructions.

Reference your vehicle owner’s manual for manufacturer’s towing

specifications.

!Failure to read and follow these instructions

could result in separation of the towed vehicle from the tow bar, causing property damage,

loss of towed vehicle, personal injury or death.

WARNING

Please read BOTH these Installation Instructions and the General Information prior to installing or operating this equipment.

Silverado 1500

Sierra 1500

Tahoe/Suburban

BX17312016-2018 Chevy Silverado 1500 / GMC Sierra 1500 (Includes Denali)

2016-2018 Chevy Tahoe Z71 / Suburban Z71 (No ACC)Installation Instructions

Instruction Notes: The fascia, shroud cover and bumper are removed and reinstalled for the baseplate installation. Some drilling and trimming is required.

Place all components that are removed on a flat, sturdy surface. All items will be reinstalled unless otherwise noted after the baseplate is installed.

The dimensional variations between otherwise identical vehicles can be considerable. While the baseplate was designed for easy installation, it may be necessary to tailor the baseplate slightly to compensate for vehicle manufacturer’s tolerances.

The BX8848 4-Diode Wiring Kit is recommended Silverado 1500/Sierra 1500 vehicles.

The BX8869 Tail Light Wiring Kit is recommended Tahoe Z71/Suburban Z71 vehicles.

Bolt Size Grade 5 Grade 81/4” 10 145/16” 19 293/8” 33 477/16” 54 781/2” 78 1195/8” 154 2303/4” 257 380

Bolt Torque Specifications Torque in Foot-Pounds for Inch Bolts

Bolt Torque Specifications Torque in Foot-Pounds for Metric Bolts

Bolt Size Grade 8.8 Grade 10.96MM 6 88MM 16 2210MM 31 4012MM 54 7014MM 89 11716MM 161 23018MM 222 318

NOTICE• Handling of some cosmetic parts when installing this product may require the use of protective covers, rags, specialty

tools, etc. to prevent damage.• When using power drills be aware of the dangers of torque and drill bit length.• When using a reciprocating saw be aware of objects behind the cutting surface.• Use a good quality paint to spray cut edges of frame to prevent rusting.• Be sure that ALL electrical connections are plugged in and accessories are functioning properly before reinstalling the

fascia.• The baseplate is computer tested to your vehicle’s GVWR, exceeding this weight will void the manufacturer’s

warranty.• Be sure to use a sufficient amount of Loctite® Red on all bolt threads before tightening. Tighten all bolts according to

the torque chart provided.• Dealer or installer be certain the user receives these instruction sheets.• If the baseplate is in an accident, it must be replaced. DO NOT use it again! An accident can cause unseen damage

and using it again could result in more damage or serious injury. DO NOT use the baseplate if it is damaged ormissing parts.

Drill a hole according to the tail light wiring

kit instructions.



BREAKAWAY SWITCH

4 PIN CONNECTOR

6 PIN CONNECTOR

2

7

6

3

1

811

13

18

15

910

4

16171412

BX1731, 2017 CHEVY TAHOE Z71 WITHOUT ACCEC # 4976; PROJECT # R4245 SIMILAR TO BX1723VIN # 1GNSKBKCXHR212800; MFG 1/17 ; GVWR 7300 lbs32-1/2" BETWEEN TAB CENTERS; 18" HIGH

5

ITEM NO. PART NUMBER DESCRIPTION QTY.1 61-7901 WLDM'T, DS, BX1731 12 61-7902 WLDM'T, PS, BX1731 13 62-3468 ATT TAB ASSY, REM, SF/SB, 1 HOLE 24 101-7756 ELECT'L BRKT, 4-WAY CONNECTOR 15 102-7287 BREAKAWAY BRACKET 16 102-7480 CONV. LINK, 13-1/2" W 6" X 5° & 2" X 90° BEND, DS 17 102-7481 CONV. LINK, 13-1/2" W 6" X 5° & 2" X 90° BEND, PS 18 104-1007 STEP WASHER W / SLOT, BX1731 29 201-0050 1/4-20 X 3/4 HEX BOLT, GRD. 5, ZP 3

10 201-0051 1/2-13 X 1-1/2, BOLT HH GRD5 211 201-0192 #10-32-1/2" SLOT, ROUND HEAD SCREW 212 201-0786 1/2-13 X 5, BOLT HH GRD5, ZP 413 202-0047 #10-32 HEX NUT 214 202-0094 1/2-13 HEX NYLON INSERT LOCK NUT, ZP 415 202-0102 1/4-20 HEX NYL NUT, ZP 316 203-0004 7/16 FLAT WASHER, ZP 617 203-0012 WASHER, 1/2 LOCK, ZP 618 203-0054 WASHER, #10 LOCK 219 226-0049 BASEPLATE SAFETY CABLE, 36" CL IV (NOT SHOWN) 220 229-0512 QUICK LINK, ZINC PLATED, 1/2" (NOT SHOWN) 221 290-0437 RECEIVER, CAP PLUG (BLK) (NOT SHOWN) 222 293-1339 SWITCH, BREAKAWAY (2010-S) (NOT PROVIDED) 123 294-0805 CONNECTOR, 4 PIN, LPP6010700 (NOT PROVIDED) 124 294-0902 CONNECTOR 6 PIN, BLK PLASTIC (NOT PROVIDED) 1

Tools Required

Large Vise GripFlat ScrewdriverTorque Wrench

DrillTape MeasureLoctite® RED1/2” Drill Bit7MM Socket10MM Socket15MM Socket18MM Socket18MM Wrench7/16” Socket7/16” Wrench3/4” Socket3/4” Wrench

5/16” Nut Driver1-1/4” Hole Saw

Important:Use only genuine factory replacement parts on your baseplate. Do NOT substitute homemade or non-typical parts. If a bolt is lost or in need of replacement, for your safety and the preservation of your baseplate, be sure to use a replacement bolt of the same grade (In most cases it will be Grade 5, please reference the parts list above). Replacement parts may be ordered through your nearest Blue Ox® Dealer or Distributor. Failing to follow and/or altering these installation instructions in either installation or required equipment will void the manufacturer’s warranty. Towing behind a non-motorized vehicle will void the warranty.

Item No. Part No. Description Qty.1.................................61-7901 .............................BX1731 Baseplate, DS ....................................................1 2.................................61-7902 .............................BX1731 Baseplate, PS ....................................................13.................................62-3468 .............................Attachment Tab Assembly with Hole ...............................24.................................101-7756 ...........................4-Way Bracket .................................................................15.................................102-7287 ...........................Breakaway Bracket .........................................................16.................................102-7480 ...........................Convenience Link, DS .....................................................17.................................102-7481 ...........................Convenience Link, PS .....................................................18.................................104-1007 ...........................Step Washer with Slot .....................................................29.................................201-0050 ...........................1/4”-20 x 3/4” Hex Head Bolt, Grade 5, ZP .....................310...............................201-0051 ...........................1/2”-13 x 1-1/2” Hex Head Bolt, Grade 5 .........................211 ...............................201-0192 ...........................#10-32 1/2” Round Slotted Head Screw ..........................212...............................201-0786 ...........................1/2”-13 x 5” Hex Head Bolt, Grade 5, ZP ........................413...............................202-0047 ...........................#10-32 Hex Nut ...............................................................214...............................202-0094 ...........................1/2”-13 Hex Nylon Insert Lock Nut, ZP ............................415...............................202-0102 ...........................1/4”-20 Hex Nylon Nut, ZP ..............................................316...............................203-0004 ...........................7/16” Flat Washer, ZP ......................................................617...............................203-0012 ...........................1/2” Lock Washer, ZP ......................................................618...............................203-0054 ...........................#10 Lock Washer, ZP ......................................................219...............................226-0049(not shown) ........Class IV Safety Cables ....................................................220...............................229-0512(not shown) ........1/2” Quicklink, ZP ............................................................221...............................290-0437(not shown) ........Black Cap Plug Receiver .................................................2



1. All Models: Remove the twelve (12) pushpins from the shroud cover. There are six(6) on each side. Set the cover aside.

2b. All Silverado/Sierra Models: Using a 10MM socket, remove the four (4) screws from the top edge of the grille. There are two (2) on each side.

2a. All Tahoe/Suburban Models: Using a 10MM socket, remove the six (6) screws from the top edge of the fascia (white). There are three (3) on each side. On the passenger side, disconnect the wiring harness (gray).

3a. All Tahoe/Suburban Models: Using a 7MM socket, remove the screws from the edge of the wheel well. Do this on both sides of the vehicle. Quantity of screws vary per model.



3b. Sierra 1500 Models: Using a 7MM socket, remove the screw from the wheel well (white). Using a T15 Torx, remove the screws (gray). Pull out the fender flare, then using a 7MM socket with extension if needed, remove the screw from the wheel well (inset). Do this on both sides of the vehicle.

4. All Tahoe/Suburban Models: Using a10MM socket, remove the six (6) screwsfrom the underside of the fascia. Thereare three (3) on each side. Remove thetwo (2) push pins located in front of thetires (gray).

5. All Z71 Models: Using a 16 MM socketremove the four (4) bolts, two (2) in thefront and back, attaching the belly pan.

6. All Tahoe/Suburban Models: Usinga 10MM socket, remove the two (2)remaining screws from the underside ofthe fascia.



8. All Sierra 1500 Models: Using a 10MM socket, remove the four (4) screws from the bottomedge of the grille. There are two (2) on each side and set the grill aside (left).All Silverado 1500 Models: Unsnap the eight (8) clips from the backside of the grille and setthe grille aside (right).

7a. All Tahoe/Suburban Models: Gently pry

the clips of the corners of the fascia loose from the fender. Behind the grille towards the base, pop loose the two (2) clips. Remove the fascia from the vehicle and set aside.

7b. Sierra 1500 Models: Unsnap the six (6) tabs from the backside of the fascia.Remove the fascia from the vehicle andset aside.



10. All Silverado/Sierra Models: Using a18MM socket, remove the four (4) boltsfrom the top of the bumper. There are two(2) on each side. Set the bumper aside.

9. All Silverado/Sierra Models: Using a15MM socket, remove the bolt from thebumper reinforcement bar. Do this onboth sides of the vehicle. Disconnectthe running lights/electrical connections(gray).

11. All Silverado/Sierra Models: Using a15MM socket, remove the three (3) boltsfrom the cover plate. Do this on both sidesof the vehicle.



12b. All Silverado/Sierra Models: Using a 18MM socket/wrench, remove the two (2) bolts from the tow hook. Do this onboth sides of the vehicle (left). Set the towhooks and hardware aside they will not bereinstalled.

13. All Models: Slide the baseplate intoplace. If the baseplate does not slidein, tap the edges of the housing outwardslightly. Do this on both sides of thevehicle.

12a. All Tahoe/Suburban Models: Using a 18MM socket remove the six (6) bolts, three (3) on each side, attaching the tow hooks and remove tow hooks. Do this on both sides of the vehicle.



16. All Models: Attach the permanentbaseplate safety cables to the providedconvenience link on the baseplate. Thephoto above shows the recommendedinstallation of the cables to frame of vehicle.Additional options may interfere withsuggested mounting; in this case, securethe cables to a solid piece of the frameas described in the General Informationsheet. Be sure the safety cables do not rubagainst any hoses or moving parts. Do thison BOTH sides of the vehicle.

15. All Models: Remove the front bolt andthen line up the convenience link on theinside of the frame. Insert both 1/2” boltsin opposite directions with washer andnylon lock nut and tighten fully. Tightenthe bottom bolt at this time. Do this forboth sides of the vehicle.

14. All Models: Insert the front 1/2” bolt and start the bottom 1/2” bolt with step washer, do this onboth sides of the vehicle. Do not fully tighten the bolts. Note: The bottom frame hole may needto be reamed out to align with the slot.

Using the baseplate as a template, use a 1/2” drill bit to drill the second hole. For the driverside drill hole drill from the inside and for the passenger side drill from the outside.



18. All Silverado/Sierra Models: Reinstallthe cover plates and bumper onto thevehicle. Install the top outer bolts, thenpush in on the bottom of the bumper toline up the inner bottom bolts. Clampthe bumper when the hole is lined upand reinstall the lower bolts. Continueto reinstall the bumper bar bolts andreconnecting the electrical connections onthe underside of the bumper.

19. Optional Tahoe/Suburban Models:Using either existing bolt attach thebrakeaway bracket. Then use a 1/4” boltto attach the brakeaway switch to thebracket.

17b. All Silverado/Sierra Models: Trim out the tow hook pocket opening to fit around the baseplates.

17a. All Tahoe/Suburban Models: On the inside of the fascia trim the indicated area to allow the attachment tabs and convenience links to fit through. Do this on both sides of the fascia.



21. All Models: Reinstall the grille, fascia andshroud cover.

Note: For Z71 Models reinstall belly panas well.

20. Optional Silverado/Sierra Models:Prior to fully reinstalling the fascia. Drilla hole thru the bumper at the desiredlocation to accommodate the plug andbolts. Using 1/4” x 1-1/2” bolts with 1/4”washers, install the plug thru the bumper.On the backside of the bumper, installthe electrical bracket and 1/4” locknuts tosecure the plug to the bumper.

5/11/15

Permanent Baseplate Safety Cable InstallationPermanent baseplate safety cables are strongly recommended when towing a vehicle with a tow bar. The principle function of the permanent baseplate safety cables is to prevent the towed vehicle from breaking loose in the event the connection between the frame of the towed vehicle and the baseplate fails or becomes disconnected. The cables must be connected from the baseplate to the frame rail or cross member of the vehicle’s frame. The illustrations below show the possible arrangements recommended by Blue Ox®. Each permanent baseplate safety cable must have an adequate weight rating for the towing system. The weight rating of the two (2) cables together will not qualify.

Do not mount the permanent baseplate safety cables against wires, hoses or brake lines.These permanent baseplate safety cables should remain installed as long as the baseplate is installed on the vehicle. Permanent baseplate safety cables are to be used in conjunction with, and NOT a replacement for legally required safety cables attaching the towed vehicle to the towing vehicle.

Option #1 Option #2

Permanent Baseplate Safety Cablearound crossmember or frame

of the towed vehicle.

Quicklink

BaseplateBaseplateQuicklink

Permanent Baseplate Safety Cablearound crossmember or frame

of the towed vehicle.

(Baseplates with Convenience Link Tabs) (Baseplates with out Convenience Link Tabs)

Notice To Baseplate Installer

1. It is YOUR responsibility to watch for:• Oil cooler and air conditioner lines• Electrical wires and hoses• Missing parts or attaching points on the frame** If the baseplate is improperly installed and is against a wire or hose, it could cause fluid leaks or electrical shorts some time after the actual baseplate installation.

General Information1. It is the owner’s responsibility to inspect all towing equipment for cracked welds, missing or worn

parts and loose bolts before each towing trip. Be sure to use Loctite® Red on all bolts and tighten to therecommended specifications.

2. It is the owner’s responsibility to hook up all towing equipment per manufacturer’s instructions/recommendations.

3. Remove the attachment tabs when not in use (if applicable).

Shop for quality Blue Ox products on our website. Learn more trailer hitches and towing we have.

https://www.carid.com/blue-ox/

https://www.carid.com/trailer-hitches.html

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