To aid those who may want to do this mod I’ve created a post to help and add to the general knowledge base on the Stance
Fitment of Fox’s Float DPS Performance Elite rear shock is relatively simple but will require you to press out and reuse the top pin and DU bush from the original Rockshox Monarch R. Giant don’t use a bush of any kind on the lower pivot which appears to me to be a bit cheap and nasty, I suppose that given the rear shock geometry there is relatively small amounts of movement at this point, but still! The cavity that the lower pivot sits in is a massive water trap with no drainage, so check your swing arm bearings regularly (mine were good) and keep this cavity dry after riding in future if there is any moisture is present. BTW all four bearing are 6802 VRSU (15 x 24 x 5mm sealed Max type bearing). With the shock out I took the opportunity to cleaned out this cavity area and coat the exposed parts of the frame and swing arm bearings with some Finish Line Teflon grease to prevent future corrosion.
As I said the lower pivot through bolt (72 x 15mm) runs straight into the shock’s lower eyelet (clearance fit) without any bearing, both shocks are the same dimensions so all the same hardware that came out can be reused. The Fox shock eyelet is the same width as the Monarch and is sandwiched in the frame with two spacers (nylon 15.1 x 19 x 11.6mm) and there is no seal so assemble with plenty of corrosion preventative lube.
The upper pivot eyelet was a little more tricky as the Monarch runs a 12.7 x 15 x 12.7mm DU self lubricating bush pressed into the shock upper eyelet (15mm dia) with a pin (6.1 x 12.7 x 22.2mm) pressed into the DU bush and spacers either side with small internal o-rings for sealing. All held together with a 40 x 6mm bolt. The Fox also has a 15mm dia shock eyelet, but it came with all the Santa Cruz Tallboy hardware, it was a different arrangement with an 8mm pivot bolt, two flanged bushings instead of the single DU bushing, and a different o-ring / spacer setup. Fortunately all I had to do was push out the pin (6.1 x 12.7 x 22.2mm) from the Monarch and reuse that. I retained the two flanged bushings that were in the Fox and reused the o-ring / spacer arrangement that came with it as well. It all worked a treat.
If you aren’t lucky enough to have spare hardware like I did and don’t want to try pushing out the original DU self lubricating bush (12.7 x 15 x 12.7mm) from the Monarch then you will need to source a bushing arrangement that steps down from 15mm (shock eyelet ID) to 12.7mm (pin OD). Just remember that you want to press out and press in any hardware your changing over or fitting new, don’t use a hammer and a punch as you may cause damage. I used a combination of a small threaded rod with nuts and washers at either end, and, a combination of small and deep reach sockets, it all worked well.
Monarch with DU self lubricating bush (12.7 x 15 x 12.7mm) installed in eyelet, above this the pin (6.1 x 12.7 x 22.2mm) and two spacers (one with the internal ring removed.
Monarch with DU self lubricating bush (12.7 x 15 x 12.7mm) installed in eyelet.
The Fox upper eyelet assembled and above the pin, two flanged bushings (instead of the single DU bushing), and then o-rings and spacers shown in order of assembly for clarity.
Fox upper eyelet with the two flanged bushings installed and the location of the ring in the groove of the flanged bushing to provide sealing. The spacer sits on the outside of this.
I hope this all helps.
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