Spohn 644 - Manual

Spohn Performance
,
Inc.
494 E Lincoln Ave Myerstown, PA 17067
1-888-365-6064 www.spohn.net
Part #644 – Adjustable Rear Upper Control Arm - Poly Bushings
1959-1964 Chevrolet 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 or 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. With the front wheels securely blocked, raise the rear of the car to an adequate working height, then
support the chassis securely with jack stands leaving the differential slightly supported with the jack. Place
the jack under the rear axle to support but do not lift.
2. Loosen and remove the nuts and bolts securing the stock rear upper control arm. For vehicles with two
rear upper control arms, remove and replace only one arm at a time as this will help keep the axle aligned
properly and make it easier for removal and replacement.
3. Remove the stock rear upper control arm.
4. Install the Spohn adjustable rear upper control arm onto the car using the OEM bolts and make the
nuts hand tight only at this time. The front grease fitting faces down and the rear grease fitting faces
straight out the back. You'll note that the control arm ships to you jig set at stock length.
5. Fully tighten the mounting bolts and safely lower the vehicle to the ground.
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 to set your pinion angle (instructions below) 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. Jam nuts are known to work loose over time. To prevent this we
recommend that after you have the control arm set to your desired length you apply some REMOVABLE
strength (Blue) Loctite to the threads and then tighten up the jam nuts on each end of the adjuster.
7. The poly bushings come pre-lubed. DO NOT use petroleum-based grease on your poly bushings! Poly
bushings must be lubricated with synthetic silicone based waterproof grease. These are the
manufacturer’s recommendations to prevent pre-mature bushing wear, and will keep things "squeak-
free". You can order this grease from Spohn Performance using our Part #902. Do not over grease the
bushings! You only need a couple pumps of grease. Over greasing will cause the bushings to balloon from
the hydraulic pressure inside of the sleeve and they will fail.
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