Fits 1988-1998 Chevrolet/GMC
Installation Instructions
1. Install cross members from under the truck bed by angling them up from behind the differen-
tial over the driveshaft and exhaust up onto the frame rails. Be sure that the prepunched
holes are facing upward toward the pickup bed and the vertical legs are facing toward each
other.
2. Once the cross members are in position, place the frame mounting plates on the 5/8" welded
studs extending from the crossarm ends. Fasten the cross arms to the frame mounting
plates using the 5/8" flange nuts provided. Finger tighten only.
Repeat this step for passenger side.
3. Using the 1/2" hardware provided, align the lower two holes in the frame mounting plate with
the existing holes in the truck frame. Secure them by inserting the 1/2" Grade 5 bolt and flat
washer from the inside of the truck frame and securing them with a 1/2" flange nut. Repeat
step 3 for the passenger side.
4. Once sub kit is installed be sure to verify that the cross members and mounting plates are in
their proper location. Be sure the rear cross arm is approximately 3" to 6" in front of the rear
axle.
5. Now that the sub kit is installed and only finger tight, use the spacer provided to evenly
space the cross arms. Once the cross arms are spaced correctly drill a pilot hole through
each of the six holes in the cross arms, up through the pick up bed. Place the cutting tem-
plate inside the pick up bed and align the six pilot holes with the letter A on the template.
Use tape and fasten the template to the pickup bed. Once fastened, drill one 1/8" pilot hole
through section letter B. Be sure to check for fuel lines brake lines, etc. before drilling.
7. WIth the pilot holes drilled, use a sabre saw to cut out section C by connecting all the points
labeled B.
8. Remove the template and set the C-1 Folding Hitch into place. Using the six pilot holes as a
guide, center each of the six holes in the Folding hitch. Using a 21/32" drill bit, drill through
each hole down to the predrilled holes in the cross arms.
9. Using the six, 5/8" Grade 5 carriage bolts and flange nuts attach the folding hitch to the
cross arms and fasten them securely. Tighten to 115 lb-ft using a torque wrench.
10. After the C-1 has been fastened to the cross arms, the remaining fasteners on the sub
assembly kit must be securely fastened. First, secure the cross arms to the frame supports
using 115 lb-ft of torque. Second, secure the frame supports to the frame; torque 1/2" hard-
ware to 75 lb-ft.
C-1 Gooseneck Folding Hitchball
Sub Assembly Kit
C-2CL / C-2CS / C-503 / C-504
