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bwilson4web · 02-27-2011, 01:53 AM

I've been tweaking our NHW11, 2003 Prius to achieve four-wheel, near perfect alignment:

front camber - use a camber bolt bought from the Toyota parts department.
rear toe and camber - use EZ-shim

I have not detected any noticeable change in handling or fuel efficiency. The main advantage is getting all the miles out of the tires.

For handling, my greatest improvement has come using larger diameter, front tires. The larger gyroscopic forces slightly improved straight-line stability ... noticeable on long distance trips.

Bob Wilson

ps. Before EZ-shim, I used metal shims:

Metal shims are used in pairs. One to handle toe on one side and another pair on the opposite side to handle camber. It works but I don't like the unsealed gaps that can accumulate road salt.

02-27-2011, 01:53 AM	#42 (permalink)
bwilson4web Engineering first Join Date: Mar 2009 Location: Huntsville, AL Posts: 843 17 i3-REx - '14 BMW i3-REx Last 3: 45.67 mpg (US) Blue Bob's - '19 Tesla Std Rng Plus Thanks: 94 Thanked 248 Times in 157 Posts	I've been tweaking our NHW11, 2003 Prius to achieve four-wheel, near perfect alignment: front camber - use a camber bolt bought from the Toyota parts department. rear toe and camber - use EZ-shim I have not detected any noticeable change in handling or fuel efficiency. The main advantage is getting all the miles out of the tires. For handling, my greatest improvement has come using larger diameter, front tires. The larger gyroscopic forces slightly improved straight-line stability ... noticeable on long distance trips. Bob Wilson ps. Before EZ-shim, I used metal shims: Metal shims are used in pairs. One to handle toe on one side and another pair on the opposite side to handle camber. It works but I don't like the unsealed gaps that can accumulate road salt. __________________ 2019 Tesla Model 3 Std. Range Plus - 215 mi EV 2017 BMW i3-REx - 106 mi EV, 88 mi mid-grade Retired engineer, Huntsville, AL Last edited by bwilson4web; 02-27-2011 at 11:05 AM..