[COPO]

You probably screwed up a sincro ring if it vibrates only in 1 gear.

See my pics here of my M20 on the bench before I slapped the M22 gears in. 3rd gear in the M22 is missing as it was still on order.

http://www.geocities.com/MotorCity/Downs/1980/muncie.htm

Mark

 

[john6066]

actually it vibrates in all gears, it's just that by the time i get up to 4,000 rpm i'm on the e-way going 80 or so. seems to be intermitant. i going to check for loose stuff. and the shifter linkage adjustment??
thanks john

 

[COPO]

If it doesn't chatter when you come out of 1st then you can rule out the bent clutch disk. Make sure the shifter bolts that are bolted to the trans are tight. Use lock tight. I had too, the dam bolts kept coming loose. I even tried a star washer and lock washers at two different tests.

Mark