Spohn 503 - Manual

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Spohn Performance, Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 www.spohn.net
Part #503 – Sub-Frame Connectors
1982-1992 GM F-Body – T-Top/Hard Top cars Only
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. Your car must be at "ride height" before installing the SFCs. Place your front tires up on
ramps. Then jack up the rear of the car and place jack stands under the rear housing (not
the frame). Your car is now at ride height (suspension loaded). If using a drive on lift, you
are at ride height. If using a frame lift, do the following. Place the front lift arms under the
front a-arms beneath the ball joint. Keep the rear lift arms under the frame of the car.
When vehicle is raised to desired height, place screw jacks underneath the rear housing.
Lower the lift just enough to place the vehicle weight onto the rear housing = ride height.
2. We'll start with the easier side - the driver's side. Unbolt the front of the rear lower
control arm and let it hang down. (Install one SFC at a time to avoid headaches!) The SFC
for the driver's side is the SFC that is one straight piece of tubing with no bends in it. Hold
the SFC up under the rocker panel and line up the rear of the SFC's mounting hole with the
LCA’s front mount hole.
3. Now swing up the front of the SFC so it is flush against the floor of the car. Place a jack
under the front of the SFC and put enough pressure against the SFC so that it is pressed
firmly against the underside of the car.
4. We recommend placing a 1" long MIG weld every 4”-6" the entire length of the SFC along
the outer rocker panel lip. If you have the powder coated version, you may want to mark
where each weld will be with a marker, and then remove the SFC and sand the powder
coating off of the SFC where the welds will be. Fully weld around the rear mounting plate
and around the front end of the SFC to the subframe.
5. Installing the "Y" piece on the driver's side. The driver's side Y piece is the shorter of the
two short pieces you have received. Place the notched (fish eye) end against the main SFC
shaft and the angle cut end against the side of the front subframe in the area of the
transmission crossmember. The Y-piece should be tight against the floor on the underside of
the car. Weld the Y-piece into place.