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b00sted_spyder · 02-06-2014

That spacer is a shim. It is a good idea to swap it over to the new pinion so you can get a start on your gear pattern. Then after you see what pattern you have, you can adjust the shim to get a good pattern. If you didn't swap anything over, I can guarantee you that your pattern is off. I'm willing to bet the backlash is way off.

02-06-2014	#42
b00sted_spyder Join Date: Jan 2010 Location: Minnesota Drives: 97 Eclipse GST spyder(Project car), 95 Corolla(DD), 91 MR2 turbo(Fun car) Posts: 751	Re: Very Bad Vibration That spacer is a shim. It is a good idea to swap it over to the new pinion so you can get a start on your gear pattern. Then after you see what pattern you have, you can adjust the shim to get a good pattern. If you didn't swap anything over, I can guarantee you that your pattern is off. I'm willing to bet the backlash is way off.