Ridetech 11456799 - Manual (Page 4)

7. Cut out the notch in the framerail. Cut only one framerail at a time. We prefer a sawzall, but
a plasma cutter or a cutoff wheel will also work. We do NOT recommend a torch. NOTE: The
fuel tank is very close to the drivers side frame rail use EXTREME care to protect the fuel tank
from damage!
8. Install the C notch. Use the C notch as a template to drill the attachment hole in the framerail.
Be sure to check for obstructions on the backside of the framerail to prevent damage. NOTE:
Installing only one side at a time will ensure that no undue stress is placed on the rear frame
section. This operation should be performed with the frame being supported AHEAD of the
front leafspring hangars and with the leafsprings removed. This will ensure there is no weight
hanging on the rear frame section.
10. Repeat steps 5 thru 9 on the other side of the truck.
9. Install and tighten all C notch attachment bolts except the lower rear bolts and the
bumpstop area bolts as illustrated above. The lower rear area uses “T bolts” that will
be installed with the inner C notch box/upper crossmember assembly. The bumpstop
area bolts are threaded into the C notch itself.
11. After the C notches are installed the inner C notch / upper crossmember assembly can be
installed. It is attached with 4 bolts along the upper lip of the C notch, the “T bolts” in the lower
rear area of the C notch, and with the 2 bolts threaded into the C notch in the bumpstop area. All
C notch and upper crossmember bolts can be final tightened and the bumpstops can be installed.
Also note in the left hand picture that the tailpipe has been removed. A turndown or custom
tailpipe should be installed to direct exhaust fumes from under the truck.