Installation Guide

***DO NOT EXCEED VEHICLE MANUFACTURER'S RECOMMENDED TOWING CAPACITY.***
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.
16400 CHEVROLET / GMC LONG BOX
EXCLUDES VEHICLES EQUIPPED WITH MAGNETIC RIDE LEVELING
Parts List
DESCRIPTIONPART NUMBERQTYITEM
NUT, SER-FLANGE,1/2-13 UNC,GRD8,YZ
20-00062161
BOLT,CAR,1/2-13 UNC,2,GRD8,YZ
10-10288102
.313" x 1.00 x 2.00" U-SHAPE SPACERCM-SP136103
.250 x 1.50 x 2.00" SQUARE HOLE SPACERCM-SP33104
1/2-13 x 4 1/8 x 4 3/4 x 1 1/2 SQ U-BOLTCM-1206-UBS2
5
1/2-13 x 4 1/8 x 6 x 1 1/2 SQ U-BOLTCM-1208-UBS26
BHCS,5/8-11 UNC,2,GRD8,YZ10-106162
7
NUT,SER-FLANGE,5/8-11 UNC,GRD8,YZ
20-0010528
.375 x 1.25 x 2.50" SQUARE HOLE SPACERCM-SP9
29
HHCS,M8x1.25,20,CL10.9,CZ
10-10409210
NUT,FLANGE,M8x1.25,CL10,CZ
20-00168211
HHCS,5/16-18 UNC,1-1/4,GRD810-10037112
NUT,SER-FLANGE,5/16-18 UNC,GRD8,YZ20-00101113
5/8" FISHWIRE5_8 FISHWIRE214
BRAKE LINE BRACKETCM-BLB115
DIAGRAM IS SHOWN FOR
INSTALLATION ON LONG
BOX MODELS
FIFTH WHEEL HITCH
MOUNTING RAILS
(SOLD SEPERATLY)
PASSENGER SIDE
FRAME RAIL
DRIVER SIDE
FRAME RAIL
FRONT OF TRUCK
REAR OF TRUCK
2
3
4
1
4
6
11
15
10
DRILL APPLICATION : ______
APPROX. INSTALL TIME: ______
OTHER NOTES:
REPLACE BRAKE BRACKET, MOVE COMPONENTS IN
PATH OF DRILLING
NO
60 MIN.
HOLE FOR LONG BOX
NOTE: CLEARANCE HOLE
FOR FACTORY BRAKE LINE
BRACKET
8
9
7