Synergy 8555-10 - Dodge HD Front Lift Coils - Manual

SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
8555-10-HD Dodge 2500/3500 4x4 3.0” spring (94-02)
GENERAL NOTES:

These instructions are also available on our website; www.synergymfg.com. Check the website before
you begin for any updated instructions and additional photos for your reference.

These coils are Left and Right specific, denoted by the part number labeled on each coil. 8555-10-HD-
R is for the passenger side of the vehicle. 8555-10-HD-L is for the driver side of the vehicle. Failure to
install the coil on the correct side will result in an unequal lift height from left to right.
 An aftermarket adjustable length track bar is recommended for lifts over 2.0” to re-center the front axle.
A factory length track bar on a lifted vehicle will result in an off-set front axle in addition to causing the
vehicle to lean to one side.

Stock length sway bar links will need to be flipped to the top on older trucks (covered in step 11 below)
or replaced with longer links on newer model trucks.

These coils are spec for all dodge diesel 4x4 trucks from 1994-2002, however lift heights will vary due
to cab configurations and drive train changes. The lift heights below are estimated lift heights on what
can be expected per model:
Year / Motor Cab Configuration Lift Height
1994-1998 / 12 Valve Single Cab 4.0"
1994-1998 / 12 Valve Extra Cab 3.5"
1998-2002 / 24 Valve Single Cab 3.5"
1998-2002 / 24 Valve Extra Cab 3.0"
Parts / Tools Needed to complete installation:

Basic simple hand tools.

Quality Jack and Jack Stands
APPROXIMATE INSTALL TIME: 3-4 HOURS
INSTALLATION:
1) Before installation, inspect coil spring part numbers. 8555-10-HD-R is for the passenger side, 8555-10-
HD-L is for the driver side.
2) Start by removing the trackbar attachment bolt at either the frame or axle side.
3) Begin by safely supporting the vehicle using a floor jack and jack stands to allow the front suspension to
hang free.
4) With suspension hanging free, remove steering attachment at pitman arm.
5) Remove lower shock bolt from both sides and disconnect sway bar links from axle.
6) Lower front axle until the front coil can be removed. Take note of brake lines and any electrical or
vacuum connections going to the axle. Make sure these are not strained or pulled. Disconnect any of
these lines / hoses to allow for coil removal.