650 w/ 750b rear wheel swap

I removed my mags on the 650 and I am going for the retro look with spokes but with disc brakes. I got a 750b wheel, cut the spokes out, replaced with buchanon spokes,and installed a 3" dropped center rim. Now I need the cush drive assy and an axle for a disc brake spoked rear wheel from a 750b. The 650 mag cush drives won't fit. Can't find one around here. I'm freaking because my wheel is built up and now I can't install. What other models have the same parts? Thanks

i did a search for axle on a 650, i can't find the 750 4's and i cant find the 750b. you might want to check on kawasaki.com yourself though.
part # 41068-1086
Model (47):
KZ550-A1 (1980)
KZ550-A2 (1981)
KZ550-A3 (1982)
KZ550-A4 (1983)
KZ550-C1 (LTD) (1980)
KZ550-C2 (LTD) (1981)
KZ550-C3 (LTD) (1982)
KZ550-C4 (LTD) (1983)
KZ550-D1 (GPz) (1981)
KZ550-F1 (Spectre) (1983)
KZ550-F2 (LTD Shaft) (1984)
KZ550-H1 (GPz) (1982)
KZ550-H2 (GPz) (1983)
KZ550-M1 (LTD Shaft) (1983)
KZ650-B1 (1977)
KZ650-B2 (1978)
KZ650-B2A (1978)
KZ650-B3 (1979)
KZ650-C1 (Custom) (1977)
KZ650-C2 (Custom) (1978)
KZ650-C3 (Custom) (1979)
KZ650-D1 (SR) (1978)
KZ650-D1A (SR) (1978)
KZ650-D2 (SR) (1979)
KZ650-E1 (LTD) (1980)
KZ650-F1 (1980)
KZ650-H1 (CSR) (1981)
KZ650-H2 (CSR) (1982)
KZ650-H3 (CSR) (1983)
KZ700-A1 (1984)
KZ750-E1 (1980)
KZ750-E2 (1981)
KZ750-E3 (1982)
KZ750-H1 (LTD) (1980)
KZ750-H2 (LTD) (1981)
KZ750-H3 (LTD) (1982)
KZ750-H4 (LTD) (1983)
KZ750-L3 (1983)
KZ750-M1 (CSR Twin) (1982)
KZ750-N1 (Spectre) (1982)
KZ750-N2 (Spectre) (1983)
KZ750-R1 (GPz) (1982)
ZN700-A1 (LTD Shaft) (1984)
ZN700-A2 (LTD Shaft) (1985)
ZX550-A1 (GPz) (1984)
ZX550-A2 (GPz) (1985)
ZX550-A3 (GPz) (1986)

Thank you for the quick reply, I am heading to the wrecking yard now......I already have more money in the front and rear wheels than the rest of the bike. I don't know if I will ever do this swap again.

well........ that was no fun. No goodies for me after scrounging through many filthy unmarked parts. I guess its Ebay for me.

You do know the 750B has a larger rear axle than the 650, right?

The 750B has a 20mm rear axle diameter.

I believe I have a spare cush drive and axle here somewhere.

Thanx for the reply, I know the axle is bigger. That is not a problem. It is just finding the parts. If you have some stuff around, let me know how much you want for it. I will put some pics of the bike up today around noon my time. Again, thanx for your time.