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Doug Domm · 09-06-2009, 09:35 AM

We are replacing gears in a GM 8.5 inch 10 bolt. They are Richmond 4.88 and call for .010 backlash. We can get .012 and .008 with the shims we have now. This is a transbrake application in a 3300 pound car. What is an acceptable plus or minus from Richmond's .010 and would you use a tighter backlash with a transbrake? Thanks Doug

09-06-2009, 09:35 AM	#1
Doug Domm Member Join Date: Apr 2006 Location: canada Posts: 251 Likes: 28 Liked 84 Times in 21 Posts	Need thoughts on backlash We are replacing gears in a GM 8.5 inch 10 bolt. They are Richmond 4.88 and call for .010 backlash. We can get .012 and .008 with the shims we have now. This is a transbrake application in a 3300 pound car. What is an acceptable plus or minus from Richmond's .010 and would you use a tighter backlash with a transbrake? Thanks Doug