R_O_M
Guest
We had the same problem when we pulled the rods in the concave of a 94 R62. Use 5_16 or 3_8 by about 1" round headed bolts, the ones with the screw driver slot, allen key head or etc. Place round head to the front and use a flat washer under one or both sides and loctite. Totally fixes the problem. We actually used longer bolts in some sections of the concave to partially bridge the gap to the next bar and give some hold back effect from the full open gap, similar to and before JD's use in their rotary's concaves. Tedious to bolt in but when you have somebody around like" Rolf's Old Man", you give him the job! Cheers!