Installation Guide

CURTMFG.COM
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PRODUCT SUPPORT: 877.287.8634
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17500-INS-RD
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12/08/2021
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ECN8701
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PAGE 3
ASSEMBLY & INSTALLATION
Parts List
Item Qty Description
1 1 Hitch head
2 1 Adjustable shank
3 2 Spring trunnion bar
4 2 Spring bar support bracket
5 1 Snap-up handle
6 2 Head tilt spacer
7 1 Hex bolt, 3/4"-10 x 5"
8 2 Nylock nut, 3/4"-10
9 1 Hex bolt, 3/4"-10 x 4"
10 2 Wire lock lynch pin
11 1 Hitch pin & clip, 5/8"
10
11
9
8
7
6
5
4
3
2
1
Step 2 - Measure the towing vehicle
Pick reference points on the front and rear bumper of the
towing vehicle. Measure and record height to pavement.
Front bumper to pavement
Rear bumper to pavement
For vehicles with air springs, air shocks or automatic leveling systems
only, check the vehicle owner's manual or other instructions on
these items. Unless otherwise indicated, air springs and air shocks
should be deflated to their minimum recommended pressure before
assembling and adjusting the weight distribution hitch.
Step 3 - Determine the 'target' uncoupled
ball height for the tow vehicle
The tow vehicle's uncoupled ball height will be set higher
than the coupler height measured in Step 1 to allow
for vehicle squat when coupled to the trailer.
For cars, vans and small SUVs, add 1/8" for each 100 lbs.
of tongue weight. Record ball height
Step 1 - Measure the trailer coupler height
Line up the tow vehicle and trailer on level pavement, in a
straight position. Use the trailer tongue jack to level the trailer.
Measure the distance from pavement
to the top of the coupler socket.
Record distance here
Top of coupler
to pavement