i have NEVER seen alldata tell you a head size unless its like an axle nut or something else off the wall. And on top of that if there to damn stupid to figure out what size bolt something is, they shouldn't be touching it in the first place
F clean cars, I Ride Dirty!.....to hide the wicked body damage...
97 GP GTP- Mystic Teal, 218k, fixing the damage
91 Cherokee- 4 in. Lift, 31 Kumho M/T, tons of fun
03 Chevy S10- full bag setup on order, will drag frame in under a month