2002 Toyota Rav4 Wearing Front Tires On The Outside

My brother in law keeps wearing tires out on his 2002 Rav 4. They don’t last 20 thousand miles before the outside of both front tires wear down the tread. He’s been told by the dealer his alignment is good. What could be wrong?

Well, there has to be something wrong with the alignment for them to wear out that way UNLESS he doesn’t keep proper air pressure in the tires.
And even then it would tend to wear both the outside and the inside edge of the front tires if the pressure was low, and the middle of the tire if the pressure was too high. It wouldn’t just wear the outside of both tires. I’d advise him to call around independant front end alignment shops in his area, or ask his friends if they know of any such shops.
And if he can’t find one himself, then call a big diesel repair shop–because if they don’t also align small trucks like his Rav 4, they would certainly know of a shop in his area who did good work on them. That’s how I find such places myself– word of mouth beats all.