CLASS RACER FORUM - View Single Post - Pinion depth and shims...12 bolt question

Dirk Olson · 01-30-2012, 11:47 AM

I agree with Glen, Pattern in the key. I assume these are pro gears? .028 to .031 to start, look at the pattern on drive side. I like to be a slight heavy on the toe side to accomidate tooth deflection. Like about .008 on back lash on new set with good runout on spool. If runout is more than .003 you will need to open the backlash up so that you get no tooth binding. This works for me and I will get 200 to 250 passes out of a gear set then cycle them out. Hope this helps.

Dirk Olson
5036 B/S

01-30-2012, 11:47 AM	#9
Dirk Olson Member Join Date: Mar 2003 Posts: 198 Likes: 48 Liked 170 Times in 45 Posts	Re: Pinion depth and shims...12 bolt question I agree with Glen, Pattern in the key. I assume these are pro gears? .028 to .031 to start, look at the pattern on drive side. I like to be a slight heavy on the toe side to accomidate tooth deflection. Like about .008 on back lash on new set with good runout on spool. If runout is more than .003 you will need to open the backlash up so that you get no tooth binding. This works for me and I will get 200 to 250 passes out of a gear set then cycle them out. Hope this helps. Dirk Olson 5036 B/S __________________ Dirk Olson 5036 STK