Installation Guide

ManualsBrandsCurt ManualsAutomotiveCURT 60681 Double Lock Gooseneck Hitch

Curt Manufacturing Inc., warrants this product to be free of defects in material and/or workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective,

Curt Manufacturing Inc., may repair or replace the product, at their option, when the product is returned, prepaid, with proof of purchase. Alteration to, misuse of, or improper installation of

this product voids the warranty. Curt Manufacturing Inc.'s liability is limited to repair or replacement of products found to be defective, and specifically excludes liability for incidental or

consequential loss or damage.

9/28/2015

**DO NOT EXCEED RECOMMENDED VEHICLE TOWING WEIGHT!**

60648 SUBKIT

PAGE 1 OF 5

WARNING!! BRAKE, FUEL, AND ELECTRICAL LINES MAY NEED TO BE LOOSENED OR REPOSITIONED TO PROVIDE CLEARANCE FOR NEW HARDWARE. SOME

MODELS MAY REQUIRE MODIFICATION OR REMOVAL OF HEAT SHIELDS. ON SHORT BED MODELS, CHECK FOR ADEQUATE TURNING CLEARANCE

BETWEEN THE FRONT OF ALL TRAILERS AND THE TRUCK CAB. ON TWO WHEEL DRIVE TRUCKS A CLEARANCE CHECK MUST BE PERFORMED

WHEN TRUCK IS LOADED AND UNLOADED TO VERIFY THE INVERTED BALL WILL NOT INTERFERE WITH THE TOP OF THE DIFFERENTIAL

SUBKIT WEIGHT: LBS.

INSTALL TIME

PROFESSIONAL: MINUTES

NOVICE (DIY): MINUTES

INSTALL NOTES:

PERI ODI CALLY CH ECK TH I S GOOSEN ECK HI T CH T O EN SURE TH AT ALL FAST ENERS

ARE T IGHT AN D T HAT ALL ST RU CT U RAL COM PON EN TS ARE SOU N D.

Parts List

ITEM QTY PART NUMBER DESCRIPTION

1 2 CM-1201-UBS 1/2-13 x 4 1/8 x 6 3/4 x 1 1/2 SQ U-BOLT

2 2

CM-1202-UBS 1/2-13 x 4 3/4 x 8 3/4 x 2 SQ U-BOLT

3 2 5/8-11 HEX FLANGE NUT

4 2 5/8-11 x 1 3_4, GR8 CARRIAGE BOLT

2 CM-SP9 .250 x 1.25 x 2.50" SQUARE HOLE SPACER

6 6 1_2 - 13 x 1 1_2 HEX, GR8 HEX BOLT

7 6 1/2 CONICAL TOOTHED WASHER

8 4 1/2-13 x 1 1/2, GR8 CARRIAGE BOLT

9 8 HFN 1213, GR8 HEX FLANGE NUT

10 1 CM-SP12 .250 x 1.00 x 2.00" SQUARE HOLE SPACER

11 4 CM-SP13 2.50 DIA. x .250" ROUND HOLE SPACER

Parts List

ITEM QTY PART NUMBER DESCRIPTION

12 2 3_4 FW FLAT WASHER

13 2

3_4 - 10 x 2 1/2 HEX HEX HEAD BOLT-NC

14 2 3_4 - 10 HFN HEX FLANGE NUT

15 2 60648-SP .375" OBROUND SPACER

16 2 CM-11-CTM CABLE TIE MOUNT 1 X 1 UV BLACK

17 2 CM-116415-CT CABLE TIE 11/64 X 15" 50# UV BLACK

18 2 1/2 PNBR 1/2" PUSHNUT BOLT RETAINER

19 1 1_2 FISHWIRE 1/2" FISHWIRE

20 1 CM-EBB 11GA. ELECTRICAL BOX BRACKET

99-07, CHEVY / GMC 1500 & 2500LD SILVERADO / SIERRA CLASSIC BODY ONLY - ALL BEDS

01-10, CHEVY / GMC 2500HD & 3500 SILVERADO / SIERRA CLASSIC & NEW BODY - ALL BEDS

FIGURE A

**REMOVE ALL REAR WINDOW ACCESSORIES BEFORE TOWING**

SHOWN WITH

60619 INSTALLED

(NOT INCLUDED IN SUBKIT)

FRONT CROSS ARM

REAR CROSS ARM

1500 MOUNTING HOLE

2500 MOUNTING HOLE

3500 MOUNTING HOLE

DRIVER SIDE PLATE

DRIVER SIDE

FRAME RAIL

PASSENGER SIDE

FRAME RAIL

- TRIM OR REMOVE HEAT SHIELD

- LOWER SPARE TO EASE INSTALL

- NO DRILLING REQUIRED

Summary of content (8 pages)

PAGE 1
**DO NOT EXCEED RECOMMENDED VEHICLE TOWING WEIGHT!** 60648 SUBKIT 99-07, CHEVY / GMC 1500 & 2500LD SILVERADO / SIERRA CLASSIC BODY ONLY - ALL BEDS 01-10, CHEVY / GMC 2500HD & 3500 SILVERADO / SIERRA CLASSIC & NEW BODY - ALL BEDS 9/28/2015 PAGE 1 OF 5 WARNING!! BRAKE, FUEL, AND ELECTRICAL LINES MAY NEED TO BE LOOSENED OR REPOSITIONED TO PROVIDE CLEARANCE FOR NEW HARDWARE. SOME MODELS MAY REQUIRE MODIFICATION OR REMOVAL OF HEAT SHIELDS.
PAGE 2
**DO NOT EXCEED RECOMMENDED VEHICLE TOWING WEIGHT!** 60648 SUBKIT WARNING!! 99-07, CHEVY / GMC 1500 & 2500LD SILVERADO / SIERRA CLASSIC BODY ONLY - ALL BEDS 01-10, CHEVY / GMC 2500HD & 3500 SILVERADO / SIERRA CLASSIC & NEW BODY - ALL BEDS PAGE 2 OF 5 BRAKE, FUEL, AND ELECTRICAL LINES MAY NEED TO BE LOOSENED OR REPOSITIONED TO PROVIDE CLEARANCE FOR NEW HARDWARE. SOME MODELS MAY REQUIRE MODIFICATION OR REMOVAL OF HEAT SHIELDS.
PAGE 3
**DO NOT EXCEED RECOMMENDED VEHICLE TOWING WEIGHT!** 60648 SUBKIT WARNING!! 99-07, CHEVY / GMC 1500 & 2500LD SILVERADO / SIERRA CLASSIC BODY ONLY - ALL BEDS 01-10, CHEVY / GMC 2500HD & 3500 SILVERADO / SIERRA CLASSIC & NEW BODY - ALL BEDS PAGE 3 OF 5 BRAKE, FUEL, AND ELECTRICAL LINES MAY NEED TO BE LOOSENED OR REPOSITIONED TO PROVIDE CLEARANCE FOR NEW HARDWARE. SOME MODELS MAY REQUIRE MODIFICATION OR REMOVAL OF HEAT SHIELDS.
PAGE 4
VACUUM CANISTER RELOCATION ITEM 1 2 PART NUMBER CM-11-CTM PAGE 4 OF 5 Parts List DESCRIPTION CABLE TIE MOUNT 1 X 1 UV BLACK CM-116415-CT CABLE TIE 11/64 X 15" 50# UV BLACK FUEL TANK OLD LOCATION 5.0" - 6.0" 2 CABLE TIE TO TANK STRAP 1 2 NEW LOCATION INSTALLATION STEPS 1) Remove vacuum canister from OEM mount. 2) Clean surface with rubbing alcohol. 3) Apply (2) cable tie mounts approximately 3" apart and 5"-6" lower than original location as shown. 4) Insert cable tie into mounts. Do Not Fasten.
PAGE 5
CAB TO TRAILER CLEARANCE PAGE 5 OF 5 * * DO NOT EXCEED V EHICLE MANUFACTU RER'S RECOMM ENDED T OWI NG CAPACITY * * **REMOVAL OF REAR WINDOW ACCESSORIES MAY BE REQUIRED** COUPLER OVERHANG TRAILER 4 in (W) 96 in ***GENERALLY, TAPERED NOSE TRAILERS ADHERE TO THE FOLLOWING DESIGNS:*** 8 FT. WIDE TRAILERS TAPER TO 6 FT. AT THE COUPLER. 7 FT. WIDE TRAILERS TAPER TO 5 FT. AT THE COUPLER.
PAGE 6
INSTALLATION INSTRUCTIONS WARNING: NEVER EXCEED YOUR VEHICLE MANUFACTURER'S RECOMMENDED TOWING CAPACITY DOUBLE LOCK GOOSENECK HITCH MAINTENANCE Keep gooseneck ball, cylinder and trailer coupler lubricated regularly. Use silicone spray or equivalent to prevent wear / rust. Keep hitch assembly and trailer coupler free of dirt and other foreign debris. Periodically check the gooseneck hitch to ensure that all fasteners are tight and that all structural components are sound.
PAGE 7
INSTALLATION Step 1 Using a 3/16" drill bit, drill a pilot hole from underneath the truck bed through the hole in center locator / trim shield (#2). See figure 2. Step 3 Using a 4" hole saw, drill the hole from above the truck bed. Take caution to not drill through the center locator / trim shield (#2) Note: The use of cutting fluid will ease this process. Remove the center locator by pulling it up through the hole. Step 4 Deburr the cut holes and spray exposed metal with rust inhibitor.
PAGE 8
BEFORE TOWING FOR THE FIRST TIME BEFORE TOWING EVERY TIME Verify adequate turning clearance between the truck cab / box corners and trailer. Ensure all fasteners are tight and that all structural components are sound. Note: Do not tow a trailer with worn or damaged parts. Check truck box clearance. There should be a minimum clearance of 6" between the bottom of the trailer overhang and the top of the box sides.