Spohn 504 User Manual

1

Spohn Performance, Inc.

494 E Lincoln Ave Myerstown, PA 17067

1-888-365-6064 www.spohn.net

Part #504 – Subframe Connectors

1993-2002 GM F-Body (Will not fit convertibles)

USE OF THIS PRODUCT IS ACCEPTANCE OF SELLER’S DISCLAIMER OF WARRANTY!

By their very nature, competition components are cons ta ntly pushe d to their limits. While our components are
designed to withstand intense race conditions, it is impossible to control the quality of installa tio n or the varying
conditions in which they are used. It is for this reason that absolutely no warr anty or guar a nte e is eithe r writte n o r
implied. Neither the seller or the manufacture r wil l b e liab le for a ny loss, dama g e , or injury – direct or indirect –
arising from the use of or inability to determine the use of any prod uc t. Befo re us ing, the user should determine
the suitability of the product for its intend e d use , and the user shall ass ume all res po ns ibility in connection
therewith. Spohn Performance, Inc . makes no guara nte e as to the legali ty fo r any spec i fic 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 desig n or add to or improve on their pr oduc t witho ut
incurring any obligation to install the same on product previously manufactur ed . The Buyer agrees to indemnify
and hold Spohn Performance, Inc. harmles s from any clai m, actio n or demand aris ing out of or inci dent to the
Buyer’s installation or use of products purc ha sed from Spohn Performance, Inc.

Notice: Disconnect the vehicle’s battery before performing any welding!

INSTRUCTIONS

1. Your car must be at "ride height" before installing the SFCs. You can accomplish this by
using a drive on lift. If a drive on lift is not available, then do the following. 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).

2. 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 has the smaller front
mounting plate. 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. Place the LCA mounting bolt through the
SFC and the LCA mount to hold the SFC in place. (Do not put the front of the LCA back in
the mount, when you weld this area it will melt the L C A b ushing!)

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 press ure against the SFC so that it is pressed
firmly against the underside of the car.

93-97 LT1 Cars: On LT1 cars only you will need to pull the black plast ic fuel line holding
clip out of the subf rame and then remove the clip from the fuel lines. Let the fuel lines hang
down and out of the way of the SFC mounting plate. When performing welding be sure to
shield the pla stic fuel lines from any welding sparks. After SFC installation hold the fuel lines
back in to their original mounting place and s ecur e them to the SFC with a wire tie run
through the small hole in the front left cor ner of the SFC ’s front mounting plate.

2

4. Using a marker, mark the SFC and the areas on the car that will be welded. Remove the
SFC and sand the powder coating off the SFC at the areas to be welded, and sand the paint
off the areas on the car where it will be welded. You want to weld around the front and rear
mounting plates wherever possible. Optionally, you may weld the SFC tube along it’s length
to the floor pan. If you choose to do this, you must lift the carpet or the welding to the floor
pan will burn it.

5. Passenger's side. Repeat #2, #3, and #4 instructions on the passenger's side.

You can see pictures of the SFCs installed at

Type 504 in to the search field

www.spohn.net