Excessive angles over 35 degrees can be avoided by using the 16 Series Double universal joints. Available in 16 Series steel, stainless steel, and aluminum, these doubles accommodate angles up to 70 degrees and are available in all spline and DD configurations.
Tech Tip: Because a double joint used in combination with a single joint will function the same as a 3 joint system, a shaft support bearing is required to prevent the shaft from "looping" and binding
1"-48 x 3/4-36...............$126.00......$146.00......$185.00
3/4" DD x 3/4" DD.........$126.00.....$146.00......$185.00
3/4"-36 x 3/4"=36..........$126.00.....$146.00......$185.00
DOUBLE SPLINED SHAFTS
Steel SS SS Pol.
S736X4X2 4” long $29.50......$37.50.......$52.50
S736X6X2 6” long $29.50......$37.50.......$52.50
S736X8X2 8” long $29.50......$37.50.......$52.50
S736X10X2 10” long $29.50......$37.50......$52.50
S736X12X2 12” long $29.50......$37.50......$52.50
S736X14X2 14” long $29.50......$37.50......$52.50
S736X16X2 16” long $29.50......$37.50......$52.50
S736X18X2 18” long $32.00......$39.00......$57.00
S736X20X2 20" long $32.00......$39.00......$57.00
S736X22X2 22” long $32.00......$39.00......$57.00
S736X24X2 24” long $32.00......$39.00......$57.00
S728X30X2 30" long $32.00......$39.00......$57.00
S736X36X2 36” long $32.00......$39.00......$57.00
We recommend splined shafting as it is a simple and safe method of attaching your steering components. If phasing needs to be slightly adjusted because of a "tight spot", You can easily index or rotate a spline shaft in small increments . The drawback to Double D shafts is that the phasing is fixed. However, using Double D shafting is preferred over welding and/or pinning due to serious potential problems with those methods. If welding is the only option, it should be done by a certified welder. Overheating the bearing, which causes premature failure, is often associated with welding. Pinning requires holes to be drilled in shafting causing a weakening of the shaft. Vibration can cause a pin to back out or become loose in the hole so it is necessary to use a safety backup such as a hose clamp or safety wire in conjunction with a pin.
Since we offer individual components to fit virtually any installation, we "custom fit" your steering shaft and joints to your car. Components can be switched from one location to another to give you the best setup for your particular vehicle.
We offer splined shafts and 3/4 Double D shsfts in steel and stainless steel and aluminum splined shafts to match the u-joints you will be using. The u-joint is locked onto the shaft using set screws and lock nuts.
S7DDX18 18” long..........................$14.50.........$55.00
S7DDX36 36” long..........................$18.50.........$83.95
If more than two joints are used in the steering system, a support bearing must
be used to prevent “looping” and binding. Use of a vibration reducer and two
u-joints will also call for a support bearing to be used. Rod end bearings with
a 3/4” hole size are commonly used for supports. The support must be mounted to
the frame, not to a sheet metal section of the body. Sheet metal will not stand
up to the stresses. The shaft should fit easily through the support so there is
no binding. A system with a double u-joint and a single u-joint counts as a
three joint system and would require a support bearing.
Steel...........................................................................$24.95
Stainless Steel........................................................$69.00
Polished Stainless Steel.......................................$84.00
