Draw-Tite 41991 SERVICE BODY RECEIVER - Manual (Page 2)

Installation Instructions
Part Number:
41991
Installation Instructions
Service Body Hitch – Long Tube
Requires Bracket kit 4907 or 4916
not included with this product to complete installation.
z 2008 Cequent Towing Products - Printed in Mexico
Sheet 2 of 6 41991N 5-7-08 Rev. B
1. Examine tow vehicle to determine adequate mounting surface to assure that attachments meet requirements of these
instructions and warnings. Make sure that no fuel lines, electrical wires, brake lines etc will be smashed, crimped, or
damaged in any way by the installation of this hitch product. No cutting, relocation or removal of tow vehicle components
can be performed without the approval of tow vehicle manufacturer(s) if required for installation of this product.
2. Weld-On Option After determining location of frame brackets relative to center hitch section surfaces must be prepared for
welding. Paint and other surface treatments must be removed to allow adequate weld penetration and strength. Be careful to
grind paint off of hitch components. Also remove paint and or plating, undercoating, rust, oil etc from vehicle frame. Use a
flexible disc grinding wheel to remove paint etc. Using a rigid disc could cause gouging and notching of metal which could ca use
high stress points and weaken hitch and or frame. All welds must be performed by a A.W.S. certified welder for the type and
position of welds being done.
(Refer to Diagram 3. below for minimum weld requirements.)
3. Bolt-On Option Determine location of frame brackets to assure that at minimum (4) 5/8” diameter bolts per side can be
installed, and that you have proper clearance for hitch and hitch accessories. Before drilling holes in vehicle frame remove any
rust or undercoating to assure that holes can be drilled accurately. It may be easier to clamp frame brackets in place and us e
the holes in the brackets as guides to drill the frame. Make sure that there are no electrical wires, brake lines, fuel lines and
other obstructions inside of frame before drilling. Follow instructions in Diagram 2. below regarding maximum hole sizes,
minimum bolt sizes and strengths and the use of proper locking type nuts. Make sure to tighten bolts to proper torque
using a torque wrench.
Diagram 3.
Side view of hitch and tow vehicle frame
showing weld-on installation.
This Diagram below shows required minimum weld lengths
and fillet sizes for installation. It is the responsibility of the hitch
installer to determine the acceptability of the tow vehicle
structure for the hitch tow rating.
Diagram 2.
Side view of hitch and tow vehicle frame
showing bolt-on installation.
NOTES:
1. Remove all paint before welding.
2. All welds 1/4”.
3. Do not weld near or across holes in hitch.
4. All welds must be done in accordance with A.W.S. specifications.
5. After welding repaint bare metal surfaces.
3” Minimum
distance between
welds.
6” Minimum weld lengths.
These holes must be used.
Wrap ends 1/2” typical.
3/8” Minimum
between weld and
edge of holes.
Outside or inside bracket typical.
This Diagram below shows required minimum requirements
for a bolt-on installation. It is the responsibility of the hitch
installer to determine the acceptability of the tow vehicle
structure for the hitch tow rating.
NOTES:
1. Note all precautions in steps above.
2. Do not drill holes in frame more than 1/32” larger than bolt.
3. Use 5/8” diameter bolts minimum, Grade 5 or stronger only.
4. Use locking type nuts with all bolts.
5. Must use at least (4) 5/8” diameter minimum bolts per side.
6” Minimum weld lengths.
Use at least (2) of these holes.