2018 Buick Envision
Mud Flap Set, Front
Mounting Diagram & Instructions
Kit# GCR27F
766819/766747
IMPORTANT:
Manufacturer is not responsible for negligent use of vehicle with mud flaps installed, including
over-tightening of screws and bolts causing damage to vehicle or mud flaps.
TOOLS REQUIRED-
¼” Drill
Bit
Electric or Rechargeable
Drill
5/16” Open Wrench or
Socket Wrench
3/8” Open Wrench or
Socket Wrench
T15 Torx
Bit
FLAPS
(1)Flap Assembly,
Front, DS
Part #766750
(1)Flap Assembly
Front, PS
Part #766751
PARTS BAG # 766660
a) (4) Washer, Flat
0.203" x 1.5", 18GA, SS
Part #018066
b) (4) Washer, Flat
0.203"ID x 1"OD, 18ga, SS
Part #018031
c) (2) Washer, Lock
18-8SS, Helicoil
Part #024001
d) (2) Screw, Mach.
18-8SS,10-24x1,Hex Hd
Part # 012022
e) (2) Nut, Hex
#10-24, SS
Part # 025003
f) (4) Bolt, Hex Flange
M4.2 x 1" Black, SS
Part #016041
INSTALLATION (For ease of installation it is suggested that the wheel be removed)
1. Before you install your Mud Flap Set, see the diagram and parts list for all necessary parts. Start on the driver’s
side.
2. Remove 2 factory bolts from the fender
3. Secure flap through holes #1 and #2 to fender holes #4 and #5 using a stainless steel bolt (#016041) and a
stainless steel washer (#018066). Ensure that the innermost part of the flap is tucked behind the fender liner as
shown in Diagram B. Loosely secure at this point.
4. Using a bubble level or square, ensure that the mud flap is level. Viewing the vehicle from the back, the outer
Edge of the mud flap should appear parallel to the tires.
Instruction Sheet Envision Front
Page 1 of 2
5. Cut liner to allow flap to sit flush against the back of the liner. (See Diagram “C”)
6. Drill a 1/4” hole through the mud flap (#3) and liner (#6).
7. Secure the mud flap to the liner using a machine screw (#012022), two stainless steel washers (#018031), a lock
washer (#024001) and a hex nut (#025003).
8. Carefully tighten all fasteners and ensure that the flap has remained level.
9. Repeat procedure for the passenger side.
Diagram "A"
Diagram "B"
Liner
Liner
#4
#1
#5
#2
#6
#3
Fit This Portion
Behind The Liner
As Shown On Diagram "B"
Diagram "C"
Cut
The
Line
r
Please check out our YouTube channel to see an install video for this application.
Instruction Sheet Envision Front
Page 2 of 2
2018 Buick Envision
Mud Flap Set, Rear
Mounting Diagram & Instructions
Kit# GCR27R
766820/766753
IMPORTANT:
Manufacturer is not responsible for negligent use of vehicle with mud flaps installed, including
over-tightening of screws and bolts causing damage to vehicle or mud flaps.
TOOLS REQUIRED-
¼” Drill
Bit
Electric or Rechargeable
Drill
5/16” Open Wrench or
Socket Wrench
3/8” Open Wrench or
Socket Wrench
T15 Torx
Bit
FLAPS
(1)Flap Assembly,
Front, DS
Part #766756
(1)Flap Assembly
Front, PS
Part #766757
PARTS BAG # 766660
a) (4) Washer, Flat
0.203" x 1.5", 18GA, SS
Part #018066
b) (4) Washer, Flat
0.203"ID x 1"OD, 18ga, SS
Part #018031
c) (2) Washer, Lock
18-8SS, Helicoil
Part #024001
d) (2) Screw, Mach.
18-8SS,10-24x1,Hex Hd
Part # 012022
e) (2) Nut, Hex
#10-24, SS
Part # 025003
f) (4) Bolt, Hex Flange
M4.2 x 1" Black, SS
Part #016041
INSTALLATION (For ease of installation it is suggested that the wheel be removed)
1. Before you install your Mud Flap Set, see the diagram and parts list for all necessary parts. Start on the driver’s
side.
2. Remove 2 factory bolts from the fender
3. Secure flap through holes #1 and #2 to fender holes #4 and #5 using a stainless steel bolt (#016041) and a
stainless steel washer (#018066). Ensure that the innermost part of the flap is tucked behind the fender liner as
shown in Diagram B. Loosely secure at this point.
4. Using a bubble level or square, ensure that the mud flap is level. Viewing the vehicle from the back, the outer
Edge of the mud flap should appear parallel to the tires.
Instruction Sheet Envision Front
Page 1 of 2
5. Cut liner to allow flap to sit flush against the back of the liner. (See Diagram “C”)
6. Drill a 1/4” hole through the mud flap (#3) and liner (#6).
7. Secure the mud flap to the liner using a machine screw (#012022), two stainless steel washers (#018031), a lock
washer (#024001) and a hex nut (#025003).
8. Carefully tighten all fasteners and ensure that the flap has remained level.
9. Repeat procedure for the passenger side.
Diagram "A"
Diagram "B"
Liner
Liner
#4
#1
#5
#6
#2
#3
Fit This Portion
Behind The Liner
As Shown On Diagram "B"
Diagram "C"
Cut
The
Line
r
Please check out our YouTube channel to see an install video for this application.
Instruction Sheet Envision Front
Page 2 of 2