Spohn M4-207-7998 User Manual
Spohn performance, inc
Spohn Performance, Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 | www.spohn.net
Part# M4-207-7998 – Adjustable Rear Lower Control Arms
1979-1998 Ford Mustang & Fox Body Cars
USE OF THIS PRODUCT IS ACCEPTANCE OF SELLER’S DISCLAIMER OF WARRANTY!
By their very nature, competition components are constantly pushed to their limits. While our
components are designed to withstand intense race conditions, it is impossible to control the
quality of installation or the varying conditions in which they are used. It is for this reason that
absolutely no warranty or guarantee is either written or implied. Neither the seller nor the
manufacturer will be liable for any loss, damage, or injury – direct or indirect – arising from
the use of or inability to determine the use of any product. Before using, the user should
determine the suitability of the product for its intended use, and the user shall assume all
responsibility in connection therewith. Spohn Performance, Inc. makes no guarantee as to the
legality for any specific class. Spohn Performance, Inc. makes no claims, nor does it intend its
products to be used in street driven vehicles. Spohn Performance, Inc. reserves the right to
make changes in design or add to or improve on their product without incurring any obligation
to install the same on product previously manufactured. The Buyer agrees to indemnify and
hold Spohn Performance, Inc. harmless from any claim, action or demand arising out of or
incident to the Buyer’s installation or use of products purchased from Spohn Performance, Inc.
INSTRUCTIONS
1. With the front wheels securely blocked, raise the rear of the vehicle to an
adequate working height, then support the vehicle / chassis / body securely
leaving the differential slightly supported with the jack. Place the jack under the rear
axle to support but do not lift.
2. Remove the rear wheels and then remove the bolts that retain the lower shock
absorber mounts. If you have a Quad-Shock equipped car remove the nuts on the
frame side of the axle dampening shock and pull it from the pivot.
3. Gradually lower the differential as far as possible (be very careful not to over
extend the flexible brake line that runs from the chassis to the rear end.). At this
point there should be little or no tension on the rear springs so they can be easily
removed from the car allowing the easiest and safest control arm installation
possible. NOTE – pay attention to the position of the cutoff spring end and be sure to
re-install the springs clocked in the same position as this will affect ride height and
ride quality.
4. Unbolt the rear sway bar from the lower control arms and remove the sway bar.
5. Working on one side of the car at a time, remove the two trailing arm pivot bolts.
The front pivot bolt has very limited clearance between the muffler and frame rail,
but can be reached with a deep socket and ratchet combination. Remove the old
control arm. Be sure to only remove and install one control arm at a time, failure to
do so will let the rear end housing rotate and will make your installation much more
difficult.
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