Tuff Country 16990 - GM 2001-06 HD 3500 6 kit User Manual
Page 2
 
LIMITED LIFETIME WARRANTY
Notice to all Tuff Country EZ-Ride Suspension 
customers: It is your responsibility to keep your 
original sales receipt! If failure should occur on any 
Tuff Country EZ-Ride Suspension component, your 
original sales receipt must accompany the warranted 
unit to receive warranty. Warranty will be void if the 
customer can not provide the original sales receipt. 
Do not install a body lift in conjunction with a 
suspension system. If a body lift is used in 
conjunction with any Tuff Country EZ-Ride 
Suspension product, your Tuff Country EZ-Ride 
Suspension WARRANTY WILL BE VOID. Tuff 
Country Inc. (“Tuff Country” ) suspension products 
are warranted to be free from defects in material and 
workmanship for life if purchased, installed and 
maintained on a non-commercial vehicle; otherwise, 
for a period of twelve (12) months, from the date of 
purchase and installation on a commercial vehicle, 
or twelve thousand (12,000) miles (which ever occurs 
first). Tuff Country does not warrant or make any 
representations concerning Tuff Country Products 
when not installed and used strictly in accordance 
with the manufacturer’s instructions for such 
installation and operation and accordance with good 
installation and maintenance practices of the 
automotive industry. This warranty does not apply to 
the cosmetic finish of Tuff Country products nor to 
Tuff Country products which have been altered, 
improperly installed, maintained, used or repaired, or 
damaged by accident, negligence, misuse or racing. 
(“Racing is used in its broadest sense, and, for 
example, without regards to formalities in relation to 
prizes, competition, etc.) This warranty is void if the 
product is removed from the original vehicle and re-
installed on that or any other vehicle. This warranty 
is exclusive and is in lieu of any implied warranty of 
merchantability, fitness for a particular purpose or 
other warranty of quality, whether express or 
implied, except the warranty of title. All implied 
warranties are limited to the duration of this 
warranty. The remedies set forth in this warranty are 
exclusive. This warranty excludes all labor charges 
or other incidental of consequential damages. Any 
part or product returned for warranty claim must be 
returned through the dealer of the distributor from 
whom it was purchased. Tuff Country reserves the 
right to examine all parts returned to it for warranty 
claim to determine whether or not any such part has 
failed because of defect in material or workmanship. 
The obligation of Tuff Country under this warranty 
shall be limited to repairing, replacing or crediting, at 
its option, any part or product found to be so 
defective. Regardless of whether any part is 
repaired, replaced or credited under this warranty, 
shipping and/or transportation charges on the return 
of such product must be prepaid by the customer 
under this warranty. 
 
Important information that needs to be read before
installation begins;
This suspension system WILL NOT work on vehicles 
equipped with dual real wheels. 
 
Tuff Country EZ-Ride Suspension recommends the 
use of an 8” wheel once part # 16990 has been 
installed on a vehicle. If any wheel wider than a 8” 
wheel is used, rubbing on the inner fender wheel and 
plastic valance will occur. 
 
After the installation is complete, a front end 
alignment is required. Also, some vehicles may need 
to have an exhaust modification performed. 
 
After completion of the installation and the new tires 
and wheels have been installed, trimming of the 
plastic valance may be needed. Slight trimming may 
be needed when installing a 35 x 12.50. 
 
Before installation begins, Tuff Country EZ-Ride 
Suspension highly recommends that the installer 
performs a test drive on the vehicle. During the test 
drive, check to see if there are any uncommon 
sounds or vibrations. If uncommon sounds or 
vibrations occur on the test drive, uncommon 
sounds or vibrations will be enhanced once the 
suspension system has been installed. Tuff Country 
EZ-Ride Suspension highly recommends notifying 
the customer prior to installation to inform the 
customer of these issues if they exist. 
 
New longer front and rear shocks are needed after 
this suspension system has been installed and the 
front and rear shocks need to be ordered as a 
separate part #. If you have not already ordered your 
front and rear shocks, please feel free to contact Tuff 
Country or your local Tuff Country dealer and order 
your front and rear shocks. 
 
Once the installation is complete and a front end 
alignment has been performed, test drive the vehicle 
to see if there are any front drive line vibrations. If 
front drive line vibration occurs, take the front drive 
line to a drive line shop and have the front drive line 
re-balanced.