Spohn 921 - Manual

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Spohn Performance, Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 www.spohn.net
Part #921 – Pro-Series Rear Anti-Roll Bar
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. Remove your stock rear sway bar, end links, and upper end link mounts (on rear sub-frames).
2. Jack up the rear of the car and place jack stands under rear end housing. Let jack down so the weight
of the car is on the rear housing. This will place the rear suspension at ride height. (Note: Place jack
stands in the area of the LCA mounts so they do not interfere with sway bar installation.)
3. It’s time to prepare the sway bar for installation. Note that when orientating the sway bar, the center
bend faces down. Remove the poly bushings from their shell. Using the supplied grease packs apply
silicone grease liberally to the inside of both sway bar bushings. Install the poly bushings onto each end of
the sway bar, and re-install the bushing shells.
4. Note: From here on out, this is a two person job as the amount of things that need to be done exceed
two hands, not to mention the weight of the bar! Place a u-bolt on one end of the rear housing. Now slide
a spacer saddle over the u-bolt and hold it in place. The second person can now hold the sway bar in
position. Slide the bushing shell onto the u-bolt. Install the flat washers and then the lock nuts, only make
hand tight at this time (start them as far as you can by hand). Now you can let this end hang down until it
rests on the u-bolt. Repeat the same procedure on the other end of the sway bar.
5. Tighten all four of the u-bolt lock nuts until you have them barely snug, do not fully tighten. Now you
want to make sure the sway bar is centered on the rear side to side, and front to back. Position the sway
bar side to side until you have the same distance from the outside of the bar to the shock on both ends.
Position the bar front to back so that the bar runs along the center line of the bottom of the axle tubes.
6. Next you want to install the upper end link mounts (plate with bolt welded to it). These bolt in place
where the OEM upper end link mount was located on the sides of the rear sub-frame. Re-use the stock
bolts (two per side) to mount these.
(Note: If you have a base model car that was not factory equipped with a rear sway bar, your car still has
these mounts in the frame, but you will need to get the four mounting bolts. You can obtain them from a
donor car, or call us, we have these GM bolts available for purchase)
7. Next you want to install the rod ended end links. We have already set them at the proper length (7.5”
c-c), do not change the length. Keep the end link mounted to the sway bar as shipped. On the top mount,
install the zinc coated spacer sleeve onto the bolt, then install the top rod end onto the bolt. Now you can
install the lock nut and fully tighten. Fully tighten the bottom bolt where the end link is mounted to the
sway bar.