Spohn D94-02-RTB-QCSB-G1500 User Manual
Page 5
Del-Sphere Pivot Joint Instructions & Notes
The Del-Sphere pivot joints are slightly greased for assembly purposes. The bushings inside of the del-sphere
pivot joints are made of Delrin, which is self-lubricating. We do not recommend greasing the pivot joint any
further than as it is supplied as further grease will only attract and retain dirt and grit. The pivot joints are
equipped with grease fittings simply because we know certain customers would want/request them no matter
what we say. You’ll also note we have a second tapped grease fitting hole with a threaded plug installed so
you can change the position of the grease fitting on the pivot end for better access if need be depending on
your mounting set-up on the vehicle.
Our Del-Sphere pivot joints are 100% rebuildable. We doubt you will ever need to rebuild them, but they
certainly can be. The delrin bushings should last the life of your vehicle. What you may find is after you have
a lot of miles on the pivot joints the tolerances may slightly open. It is for this reason that we made the pivot
joints adjustable. By tightening the threaded end retainer you can take up any slack and make the joint as
tight as it was when new, it’s that simple. This also allows you to vary the torque load applied to the pivot
ball. If you want a very low friction joint you can loosen the threaded end retainer, etc. When making
adjustments to the threaded end retainer you will need to loosen the set screw with an allen wrench. When
making your adjustment align one of the threaded retainer end’s slots with the set screw and re-tighten the
set screw, this locks the threaded end retainer’s position in to place and keeps it locked to your setting. Use
our Part# DS34-W adjusting tool for easy adjustments.
What is a Del-Sphere pivot joint? Think of the Del-Sphere pivot joint as a Delrin bushed spherical rod
end. Designed and manufactured exclusively by Spohn Performance, we have taken street suspension
performance to the next level. Our Del-Sphere pivot joint features a one piece forged and heat treated
chrome moly housing, a heat treated and chrome plated chrome moly spherical ball, Delrin bushing races,
heat treated retainer washer and snap ring, heat treated and chrome plated chrome moly threaded adjuster
ring, an external grease fitting and a beautiful silver zinc plated housing finish. The delrin bushing races
absorb shock and road noise so you get the quiet and smooth ride of a bushing as well as 28 degrees of
rotation!
What is Delrin, and why did you choose to use it? Delrin is an acetal homopolymer made by DuPont. It
is characterized as having an excellent combination of physical properties that make it suitable for numerous
applications. With extremely low moisture absorption and a low coefficient of friction (self-lubricating), Delrin
is uniquely tailored for wear applications in high humidity or moisture environments. Delrin will maintain
constant physical properties under high moisture conditions and out-perform nylon or polyurethane under
these conditions. Delrin has a 10,000 psi tensile strength and a 120 Rockwell Hardness rating making it ideal
for our Del-Sphere pivot joint application.
Replacement Parts:
Part #
Description
DS34RH
Del-Sphere Assembly - 3/4"-16 RH x 3/4" Bore
DS34LH
Del-Sphere Assembly - 3/4"-16 LH x 3/4" Bore
DS34-Wash
Del-Sphere End Washer
DS34-W
Del-Sphere Adjustment Tool
DS34-TE
Del-Sphere Threaded Adjuster End
DS34-SR
Del-Sphere Snap Ring
DS34-Bush
Del-Sphere Delrin Bushing (2 per assembly)
DS34-Ball
Del-Sphere Spherical Ball