There is light at the end of the tunnel. I put the TC Weasler slip clutch and the stump jumper pan on and headed for the brush patch. Went for about 15 minutes and sheared another pin so headed back to shop. There are 8 bolts to adjust the slip clutch pressure, I backed each one off 1/2 turn and six hours later I am still on the same shear pin. I hit a couple gopher mounds that dam near killed the 33 hp 955 off but the shear pin did not snap. The weasler fit right up except the shear pin hole in the weasler was 12 mm and the JD 10 mm. I figured I was just asking for trouble with that extra "slop" but I was proved wrong. Will be interesting to see how long the slip clutch disc's last.