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JoeBauer · 10-25-2018, 03:24 AM

I guess it could be the tires are out of round, but that is not the case with my TT. I put new tires on all around three years ago, it vibrated then, and it vibrates now!

On my speedster however, new tires did a lot to end vibration. So did straightening wire spokes and balance beads.

I have heard that the TT drive shaft is relatively long for its thickness and this can result in "driveshaft whip" which causes vibration. Some people get a machine shop to put a carrier bushing halfway down the torque to solve this.

Ford advertised the TT with 7:1 gears to run 17 mph, so I guess mine running 15 is pretty good ninety years later. I have learned to like 15 mph! I have lots of LED lighting on the back and do most of my driving between midnight and 4:00 a.m. This limits me to Wal Mart, the 24 hour gym, and gas stations, but they are all within a 20 minutes drive with virtually no traffic.

10-25-2018, 03:24 AM	#9
JoeBauer Member Join Date: Apr 2018 Posts: 87	Re: Model tt Huckster I guess it could be the tires are out of round, but that is not the case with my TT. I put new tires on all around three years ago, it vibrated then, and it vibrates now! On my speedster however, new tires did a lot to end vibration. So did straightening wire spokes and balance beads. I have heard that the TT drive shaft is relatively long for its thickness and this can result in "driveshaft whip" which causes vibration. Some people get a machine shop to put a carrier bushing halfway down the torque to solve this. Ford advertised the TT with 7:1 gears to run 17 mph, so I guess mine running 15 is pretty good ninety years later. I have learned to like 15 mph! I have lots of LED lighting on the back and do most of my driving between midnight and 4:00 a.m. This limits me to Wal Mart, the 24 hour gym, and gas stations, but they are all within a 20 minutes drive with virtually no traffic.