Spohn 635 User Manual
Spohn performance, inc
Spohn Performance, Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 www.spohn.net
Part #635 - Adjustable Rear Upper Control Arms – Del-Sphere Pivot Joint
1977-1996 GM B-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. Lift rear of vehicle and support by frame rails. DO NOT SUPPORT BY REAREND!
2. Use a floor jack and place under rear axle to support the rear.
3. Remove the front and rear upper control arm bolts and nuts and remove control
arm. The axle may shift slightly rearward. Do one control arm at a time.
4. Install the Spohn upper control arm using the jack to help position the rear axle
properly. The del-sphere end has two spacers on each side. This comes assembled
and wire tied in place so you can see how the assembly is to be installed. Note: The
del-sphere end is right hand threaded.
Make the bolts hand tight only at this time.
Do one side then do the other side.
5. Lower vehicle to ride height (suspension loaded) and tighten all bolts to 72
ft./lbs.
6. One end of the adjuster is left hand threaded and the other end is right hand
threaded. To adjust the length of your control arm loosen both jam nuts and put a
wrench on the adjuster and turn it clockwise or counter-clockwise to lengthen or
shorten the control arm. Once set, tighten the jam nuts. Note: UCAs are shipped jig
set at stock length.
7. Jam nuts are known to work loose over time. To prevent this we recommend
that after you have the UCAs set to your desired length you apply some REMOVABLE
strength (blue) Loctite to the adjuster threads and then tighten up the jam nuts on
each end of the adjuster.