AMP Research PowerStep 77126-01A User manual

www.amp-research.com 1/11 IM77126 rev 01.21.20
INSTALLATION GUIDE
3-5 Hours
Professional installation recommended
Invented, engineered and manufactured exclusively by AMP Research in the USA. May be covered by one of the following patents:
6,641,158; 6,830,257; 6,834,875; 6,938,909; 7,055,839; 7,380,807; 7,398,985; 7,584,975 ©2012 AMP Research. All rights reserved.
Printed in USA.
TOOLS REQUIRED
qSafety goggles
qMeasuring tape
qPower Drill
q10 mm socket
q13 mm socket
q1/2” socket
qRatchet wrench and extension
qWire crimpers
qWire stripper / cutter
q 3/16” hex key wrench (allen wrench)
q4mm hex key wrench ( allen wrench )
qElectrical tape
qWeather proof caulking (silicone sealer)
qSilicone spray
INSTALLATION TIME
12 3 4
SKILL LEVEL
4= Experienced
AMP RESEARCH TECH SUPPORT 1-888-983-2204 (Press 2) Monday - Friday, 7:00 AM - 5:00 PM PST
APPLICATION AMP Part #
Chevrolet Silverado1500 / GMC Sierra 1500 - Crew Cab 2007-2013 77126-01A
5-Year Limited Warranty
WARRANTY
Chevrolet Silverado 2500/3500 - Crew Cab 2007-2014 77126-01A
GMC Sierra 2500/3500
Note:The application works only on the Crew Cab model Vehicles.
(Excludes all 2011-up models with Diesel Engine)

www.amp-research.com 2/11 IM77126 rev 01.21.20
AMP RESEARCH POWERSTEPTM – CHEVROLET / GMC
CAUTION: HANDLE WITH CARE.
To ensure our customers receive all components with full integrity, we pack the motors separate from their linkage
assemblies. This requires that the installer position and fasten the motor before continuing with the install. Please
follow the instructions below and handle the assembly carefully.
CAUTION: Dropping the assembly or any excessive impact MAY cause damage to the motor.
Instructions:
1. Position the gear cover in place as shown if not already in place.
2. Seat motor into position on the three mounting bosses. This may require an adjustment of the gear by moving the
swing arms.
3. After seating into place, fasten the motor with the three motor mount screws with 4mm Hex Head. Tighten screws
to 36 in-lbs (4N-m). Do not over torque.
INSTALLATION GUIDE
Attaching motor to Linkage assembly.
EXPLODED VIEW
• Motor
• Socket cap screw
• Washer
• Drive Gear Housing Cover

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AMP RESEARCH POWERSTEPTM – CHEVROLET / GMC
(A) End cap left (x1)
1x2
Running board assembly
D
B
(B) End cap right (x1)
(C) T-nut insert (x2)
(D) Socket cap screw (x2)
(E) End cap wedge right (x1)
(F) End cap wedge left (x1)
A
CE
F
Cut Dimension
2
Motor Linkage assembly
5
Wire harness
3
Idler Linkage assembly
x2 x2
6
Controller STA
7
Posi-Tap™
x4 8x20
M8 Hex Bolt w/
Conical washer
4
Rail Assembly
9x6
M8 Nut w/
Conical washer
x2

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AMP RESEARCH POWERSTEPTM – CHEVROLET / GMC
Socket Cap
Screw
14 x8
Grommet
18
Cable tie (11”)
20 x2
Cable tie (7”)
19
x20
21
LED Lamp
x4
13 x6
M8 U-nut
11
M5 Washer
x6
10 x6
M5 Hex Bolt
22
Butt Connector
x8
12 x4
M6 Flange Bolt
Upper Mount
Spacer
17 x4
23
LED Light Bracket
x4
5/16-18
Carriage Bolt
15 x10
5/16-18
Flange nut
16 x10
27
Linkage Mounting
Bracket
x4 28
Rail Mounting
Bracket
x2 29 x2
Gear Cover
30 x2
Motor
26
Tubing
(installation tool)
24
Nut Plates
x4 25
Button Head
Bolts
x4

www.amp-research.com 5/11 IM77126 rev 01.21.20
AMP RESEARCH POWERSTEPTM – CHEVROLET / GMC
28 27
27
8.50
37.45
61.25
NOTE: 2500/3500HD Models-Rear mount on passenger side of vehicle will need to be moved
forward from last mounting hole to second to last hole. Approx 15-1/4”.
Insert and position Carriage bolts (15) into slot on rail (4). Insert from either end of rail. Using Flange Nuts
(12) provided assemble Brackets 2x (27) & 1x (28) onto the rail (4). Driver side shown. Dimensions shown
are for reference. Insert Threaded nut plate onto rail pocket. Light brackets will need to go rearward of Front
linkage bracket and forward of Rear linkage bracket. Leave loose to allow for adjustment.
Do not tighten this will allow for rail adjustment when mounted onto vehicle. See note below for HD models.
Insert U-Nut in last sheetmetal tab / hole from front. Set rail up into position. Starting with the rear bracket
work towards the two front brackets. Attach Bolts
2x (8) and Nut 1x (9). Snug to body do not tighten!
Note: Forward and middle bracket may not need nut if threaded
insert is present.
Thread supplied bolts 2x (8) into Rear Drive Linkage.
Repeat step for Front Idler Linkage. Do not tighten.
Install provided spacer (17) and M6 bolt (12) into
upper mount as shown on both the Drive and Idler
linkages. Do not tighten.
Rear Of Vehicle Front Of Vehicle
Rear of vehicle
Install U Nut (9)
8
9
8
8
17
12
Note: Badge on rail sits towards the rear of the vehicle!
1
23
4 5
25
24
23