The only info I can find online for trailer hitch bolts is M12-1.25 x 40. I picked up a junkyard hitch from (I believe) an 01, so that's the size bolt I bought. But they are clearly too large. I think mine takes 8 0r 9 mm, but I don't know the pitch or length. Anyone happen to know?
I'm not sure why mine different, unless it was only rated for a class 2, which doesn't make any sense.
Answered you on the other thread. Look up a hitch on etrailer for your year, and see what's packed in their kit. PDF download of the instructions and packing list.
I bought 10 mm 1.25 pitch bolts and I can't even get them started. There is still factory paint on the lower end of the bolt holes, and the threads look awfully clean inside. I will eat my shorts if these aren't 9 mm bolts. Unfortunately I can't find one anywhere so I have to make yet another trip to town to buy one and find out. But I tried a 3/8" bolt and it would juuust start, but I didn't force it. That's 9.5 mm. I'll say it again: I will eat my shorts if they aren't 9 mm. I'm taking it into the shop for front end work tomorrow and I'll see if they don't agree.
The 10 mm tap slid right in and cleaned them up effortlessly. I think there must have just been a glob of paint in the first thread so the bolts would NOT go in.
That would indeed be pretty bizarre, but stranger things have happened. Get yourself a tap and make those small holes whatever you want them to be and be done with it.
It would be very bizarre because nobody within 100 miles of me even carries 9 mm bolts. I probably will just tap them to 10, although I've done very little tapping in my life I do have a tap somewhere....