Hi -

I've run into a snag with clutch parts for my '49 Chevy 3600 3/4-ton truck. I ordered p.n. MU54691A clutch kit from RockAuto and it does not match my existing clutch. The obvious difference is that the original clutch mounted onto the flywheel with nine (9) bolts and the new clutch only has six (6) bolt holes. After checking on line with NAPA Auto Parts and RockAuto, all of the images of their clutch kits show only six (6) bolt holes. My original clutch looks very similar to Fig. 121 on pg. 6-91 of the Chevrolet Truck Shop Manual except there are nine (9) perimeter bolts. What is the correct clutch kit for my truck?

Thanks!