Spohn 737 User Manual
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Our research has shown that the o.d. of a thirdgen strut housing will vary from as
small as 2.14” to as big as 2.20” depending on the brand of the strut. Our threaded
coil over sleeves have a 2.21” i.d. to allow installation on any brand strut. If the
sleeve is a little loose of a fit on your strut, you can wrap your strut housing with
duct tape or racer’s tape to provide for a snug fit.
Slide the coil over sleeve over the strut until it is firmly seated at the base of
the strut housing. Keep the adjustable spring seat adjusted towards the
center of the sleeve.
7. Place a thrust washer on the base of the spring adjuster seat, then place a
Torrington thrust bearing on top of the washer, and finally place a thrust washer on
top of the bearing (washer, bearing, washer).
8. Slide the coil over spring over the strut and down on to the washers/bearings on
the seat of the spring adjuster.
9. Place the ¼” plate on to the underside of the strut tower. You will note that one
edge of the plate has a small “V” cut in to it, the “V” faces the engine bay.
10. Place the strut mount retainer underneath the ¼” plate.
11. Position your new upper strut mount, then install the supplied bolts, washers,
and nuts (bolt, flat washer, plate, strut mount, flat washer, nut). You want to install
the bolts from the underside of the strut tower, through the plate and strut mount
and install the nuts on the top of the strut mounts.
12. Re-align your upper strut mounts to the line you drew around them earlier and
then tighten the three nuts.
13. Place a thrust washer, Torrington thrust bearing, and then another thrust washer
on top of the spring (washer, bearing, washer). Hold in place with a piece of scotch
tape wrapped around the spring.
14. Swing your strut back inside the wheel well. While guiding the top of the strut
shaft and the spring, jack up the a-arm until the strut shaft is through the strut
mount and re-install the top strut mounting nut. Tighten the nut. Make sure the
spring, washers, and bearing are properly positioned and seated around the coil over
mounting hat on the underside of the strut mount.
15. Once both sides have been installed, re-install the wheels and lower the car to
the ground. With the car in neutral, roll the car front and back several times to
properly seat the springs.
16. Using the supplied spanner wrench, adjust the spring seat until you have
achieved the desired ride height. Whenever an adjustment has been made, roll the
car as above to seat the springs properly. Once you have the setting you desire,
tighten the spring seat adjuster’s set screw with an allen wrench. You will note that
adjustments can be made with the suspension loaded, however, if you jack the car
up until the tire is off the ground and then do your adjustments, it is much easier,
and can normally be turned by hand.
17. Take your car for a front end alignment.