Price I read was 2K (not direct from reid) That price tag takes the cost effective out of things........... But if you love KP knuckles but want to run rockwell RCV's, there you go!
This is a quote from Reid:
Our kingpin Dana 60 knuckles and Cs have made a lot of people happy over the years, and this new assembly is not intended to replace or compete against the 60 any more than our Dana 60 parts would compete against our Dana 44 parts. The Super Kingpin assembly is an order of magnitude larger than the kingpin 60/70 parts.
We already offer a 2005+ SuperDuty highsteer knuckle as a "Stage 1" upgrade to the SuperDuty axles or for those who like running ball joint outers on custom housings. This new Super Kingpin assembly is a "Stage 2" upgrade for those who keep blowing out their ball joints and U-joints. The kingpin design has proven to be much more durable than the ball joint design, and for the majority of people out there a well-built kingpin Dana 60 is all they need. However, now that the military has finished surplussing all those cheap Rockwells, and aftermarket 14-Bolts and Dana 80s are dwarfing the Dana 60 platform, there is a need for the next size up outer axle assembly.
We had a few primary objectives when designing our new knuckle assembly:
Room to fit a 1550 or Rockwell U-joint or CV joint.
Larger diameter stub shafts.
Kingpins instead of ball joints.
Larger diameter axle tubes.
Better brakes.
Affordable platform for Average Joes.
We studied several different ways to go about reaching these goals, and the Super Kingpin assembly you see here is the one that best met all of those requirements. Anyone can design a strong axle assembly when money is no object; getting it done affordably is the challenge. Although this will obviously work with any aftermarket axle like a ProRock 80, Torq-14, etc., here's another option for the do-it-yourselfer: buy a junkyard 2005+ SuperDuty front axle (let's say for $1000), cut the ball joint C's off, add our new Super Kingpin Cs and knuckles, and then bolt all the SuperDuty stuff back on. Now you have a ~10.1-inch high-pinion axle with 1550s, big brakes, and nearly bombproof outers for around $3000. Should you still need to upgrade (think rock bouncers on 54's) you can fit Rockwell U-joints, upgraded axle shafts, bigger/lighter brakes, upgraded unitbearings, and anything else that fits on a 2005+ SuperDuty knuckle.
Hopefully by now we've answered your questions regarding why we went this route. The track record has shown that school kingpins are a lot stronger and more durable than even the high-end aftermarket upgraded ball joints. Our bronze replacement bushings further upgrade the strength and durability of the kingpin design, and spreading the kingpins out another 1.5" makes them significantly stronger. Down the road if people start beating their axles hard enough that the limits of the kingpins are reached, aftermarket upgrades for the standard kingpin 60s will also work on the Super Kingpin assembly. This is only the beginning for this new outer assembly standard.
