Good Morning, I need help with unfinished conversion

Hello my friends, i need help with Peterbilt 281 "Duel", I can not finish it ... lack put the sixth wheel (6 wheels), correctly, motor scale, sound, lights, etc ... it gives error trying to load, but appears in the showroom ...I lost my interest in finishing it..but if anyone be interested in finishing it, see attached file, or follows the link

drive.google.com/open?id=0B32bStC68dgmfm...5eWQtVl8xZkFZTm5MLW8

I also wanted to do a couple of trucks, but somehow it just does not work, and still plays around some ERROR, I do not understand why.

I think that racer 0.6.5.5 does not support 6 wheeled vehicles, try to 0.84 or later.
Or Download it some 6 circular truck and see if it works.

In 090 is Okay i think - see this www.tracciontrasera.es/downloads/downloa...-diesel-8v-71t-8v-92

u can use this car ini to make the 6 wheel car u need to make....it must not be difficult,,i think

but in Izuzu has a 6 wheels truck, and it is for 0.6.5...

yes, and they probably has used the bus car.ini for making all wheels mooving....i think so...but in 99.9% is true,,is this the way to make them

Yay, that is true, i will make some Mercedes (Trucks)

ok..try making and other truck,,like kenworth op peterblit,,,or european trucks

Ok, but mercedes trucks leave to me! : D