Tuff Country 16810 - GM 88-98 K1500 / K2500 6 lug 6 kit User Manual
Torque settings
 
PART NUMBER : 16810 
1988 - 1998 CHEVY / GMC 1500 6 LUG 
6” SUSPENSION SYSTEM WITH FRONT SPINDLES 
 
PARTS LIST: 
 
Part 
#
Description
Qty.
16810-03
Driver Side Differential Drop Bracket
1
16810-04
Passenger Side Differential
Drop
Bracket
1
16810-06
Rear Lateral Compression Arm Mounts 2
16810-07
Torsion Bar Drop Brackets
2
16810-09
One Piece Lower Sub Frame
1
16810-11
Lateral Compression Arms
2
C6I-118M
Driver
Side
Spindle
1
C6I-119M
Passenger Side Spindle
1
9803
Axle
Spacers
2
BL401
4”
Lifted
Blocks
2
5U-9295S
9/16” x 2 3/4” x 12 5/8” Square U-Bolts 4
TCI-R25
Rear
Add-a-Leaf
2
BLR01
Rear Brake Line Extension Bracket
1
BLR02
Front Brake Line Extension Bracket
2
916NW
9/16” U-bolt High Nuts & Washers
1
CB38
3/8” Centering Bolt & Nuts
1
16810SL
Sleeve and Poly Bag
1
16810NB
Hardware
Bag
1
16810INST Instruction
Sheet
1
INSTALLATION MANUAL
6” I.F.S. SUSPENSION SYSTEM
1988 - 1998
CHEVY / GMC 1500 OR 2500 (6 LUG)
PART # 16810
Sj051403rev.01
Congratulations on your selection to purchase a Tuff 
Country EZ-Ride Suspension System. We at Tuff 
Country EZ-Ride Suspension are proud to offer a 
high quality product at the industries most 
competitive pricing. Thank you for your confidence in 
us and our product. 
 
For a list of all parts, please refer to the Parts 
Description Page, at the end of the Installation 
Manual. 
 
Make sure to use thread locker or locktite on all new 
and stock hardware associated with the installation 
of this suspension system. 
Torque Settings
5/16”
15—18
ft
lbs.
3/8”
28—32
ft
lbs.
7/16”
30—35
ft
lbs.
1/2”
65—85 ft lbs.
9/16”
85—120
ft
lbs.
5/8”
95—130
ft
lbs.
3/4”
100—140
ft
lbs.
IMPORTANT CUSTOMER INFORMATION
Tuff Country EZ-Ride Suspension highly 
recommends that a qualified or a certified mechanic 
performs this installation. 
 
If you desire to return your vehicle to stock, it is the 
customers responsibility to save all stock hardware. 
 
It is the responsibility of the customer or the 
mechanic to wear safety glasses at all times when 
performing this installation. 
 
It is the customers/installers responsibility to read 
and understand all steps before installation begins. 
OEM manual should be used as a reference guide. 
 
This vehicles reaction and handling characteristics 
may differ from standard cars and/or trucks. 
Modifications to improve and/or enhance off road 
performance may raise the intended center of 
gravity. Extreme caution must be utilized when 
encountering driving conditions which may cause 
vehicle imbalance or loss of control. DRIVE SAFELY! 
Avoid abrupt maneuvers: such as sudden sharp 
turns which could cause a roll over, resulting in 
serious injury or death. 
 
It is the customers responsibility to make sure that a 
re-torque is performed on all hardware associated 
with this suspension system after the first 100 miles 
of installation. It is also the customers responsibility 
to do a complete re-torque after every 3000 miles or 
after every off road use. 
 
After the original installation, Tuff Country EZ-Ride 
Suspension also recommends having the alignment 
checked every 6 months to ensure proper tracking, 
proper wear on tires and front end components. Tuff 
Country EZ-Ride Suspension takes no responsibility 
for abuse, improper installation or improper 
suspension maintenance. 
 
The Tuff Country EZ-Ride Suspension product safety 
label that is included in your kit box must be 
installed inside the cab in plain view of all 
occupants. 
 
It is the responsibility of the installers to make sure 
that the rear view mirror hanger is hung from the 
rear view mirror. The rear view mirror hanger has 
instructions on proper post installation procedure.