If you want to DIY this is the cost effective alternative-

The scientific principle is sound, if a little fiddly.

www.trackace.co.uk/

I've got one and it works, and is accurate if you follow the instructions, take two or more readings and average them.

I'll second that, once you've worked out how to use it the first time it's an effective tool, the wheel/tyres on my Landcruiser are obviously comparatively large (good tyres cheaper than many half the size!) and the trackace did its job fine.

Just out of interest a handy way to tell if you have alignment issues is to find a wet road with a continuous white line and drive at normal speed with one wheel on said white line, the paint will usually have less grip than the road surface (obviously a decent surface not worn out shiny tarmac) and if the vehicle pulls in one direction it's a sign alignment is out.

One other thing i do if handling/damping on a car is suspect i get someone else to drive my car over various surfaces undulations etc and observe whilst following in another car, its surprising how much more you can deduce from how your car behaves.

Edited by gordonbennet on 22/10/2024 at 11:24