I've got a 90 Runner, and I was wondering if the rim size is the same from a 90 stock rim to a 99 TRD Tacoma rim? If so what size tire could I fit? Any help would be great.

 

They are the same backspacing and bolt pattern so yes they will fit. You don't mention ifyou are wanting the dual 3 spoke Tacoma style or 5 spoke limited style. Both will fit but you can't run the stock center caps up front from the 5 spokes since the ADD stuff in the second gen sticks out too far. The new TRD Ivan Stewart Tundra wheels look like they may clear the ADD in the 2nd gen.

 

Correct me if I'm wrong, but the 1st and 2nd gens are a 15" rim while the 3rd is a 16". The 16" rim still fits the older style, you would just have to get new tires to fit the 16" rim.
- You probably already new that:beaver:

 

I knew about getting new tires. I just hope I can still get 32's on. i got the three spoke wheels. I'm thinking it will look bad a$$

 

Those wheels will fit great - I see a lot of second gen 4Runners and 3rd gen trucks with them.

 

I'm really glad to here that!