I need to figure out how to fix my speedometer Tranny: SMC465…

I need to figure out how to fix my speedometer
Tranny: SMC465
Xfer case: NP205
Gears: 4.56 (stock)
tires:40" ground hawgs
this adapter is stock and was to assist in fixing the speedo.. it has written on it
SW in big print
W9 on one side
777F .9743D on the other side....
weird... plus my camera phone pic looks like crap!

Owner caption April 2007 · Photo 288 of 501