Spohn 399 - Manual

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Spohn Performance, Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 www.spohn.net
Full Length Transmission Mounted Adjustable Torque Arm
Part # 399 – 1982-2002 GM F-Body
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. Raise car and support with jack stands under frame allowing rear suspension to fall to it's
furthest position.
2. Remove both long bolts that attach the factory torque arm to the rear end.
3. Remove all three bolts that hold the torque arm front mount to the transmission and
remove the entire torque arm and front mount assembly. Some cars require lowering the
transmission crossmember in order to remove the bracket.
4. Separate the two halves of the factory clamshell front mount and remove from torque
arm.
5. The factory mount requires minimal modification to accept the supplied polyurethane
bushing. Locate the four rivets that attach the rubber bonded metal to the brackets and drill
out or grind off the factory rivets to remove the rubber portion. Leave the outer half of the
clamshell mount off and reinstall the half that bolts to the transmission. Tighten.
6. Place the polyurethane bushing onto the mounted half and install outer half but leave
the top bolt loose.
7. Lube the polyurethane bushing and then slide the torque arm in through the bushing.
Positioning the rear bracket over the rear end may require turning the torque arm adjuster
to get the proper bracket angle. Note: All jam nuts and rear bracket cross bolts must be
loose to turn adjuster. The rear end may also need to be levered into the proper position to
slide the torque arm bracket over it. Once this is achieved, slide the factory bolts in through
the top and tighten to 100 ft/lbs.
8. Tighten front mounting bolts to snug bushing.