It is very possible to have 3.90's. I have had peeps on here tell me no its not but I seen 3 legos wagons with 3.90 and one with 4.11 in my junk yard here locally. Just my .02cents
PS Sweet brat build. Im kinda gettin to work on my brat project now.
Thanks for the complement and I think I'm just used to seeing 4:11's under there, I looked at the chart Pooparu posted on here, and quite a few lego's came with them, guess I just never realized it before now. Always good info coming from this site! Thanks guys!