anyone have trouble mounting a Mazda speed 6 body? It seems the front body posts are not long enough.

Had no problem uses upper most hole in the front.

I dont see why you couldnt use the losi hex's in different widths.

The first speed 6 I ran I ran it stock top hole. I found that eventually the front spoiler was cut to almost nothing. After seeing pics of Hebert and Juho's cars at the European Tour I put in a 1.5mm spacer to raise them up.

Where do you put the spacer?

speaking of spacers, what metal wheel base spacers do you guys use? the black plastic is kinda cheesy.

Just use a longer body post.

At the bottom of the post, use a longer screw and some locktite too...

Under the body post to raise it up just a little.

Also, As far as spacers go I have found the Mugen spacers at amain pretty cheap and larger in diameter. They work great for toe spacers/suspension arm mount spacers. The actual wheel base spacers I am using stock but I think my TOP stuff fits.

Does anybody know where i could find a chasis protector so i dont scratch the crap out of the car on asphaltthis season?

well my build is on hold ....im missing a few diff parts and a chipped chassis ..called the hotline for associated sent them some pics and is now waiting for the missing parts to arrive .
pyro search around the airplane section of your local hobby shop for very large decals sheets and trace the chassis and you can make your own

I think j concepts has chassis protector.

For arm mount, wheelbase and toe adjustment spacers, I use 12r5 front bulkhead shims. They come in 2mm, 1.0, and 0.5mm and are also blue

I have bad luck with my TC6 ... found a dog bone that has a thicker diameter and cannot fit into the UJ cup, and then found that one of the outer a-arm pin has a smaller diameter than usual and as such the c-hub is not fitting tightly on the a-arm ... not sure if you guys also find same problem in some of the kits sold ?

Just touch base with AE and they will take care of you.
I sent an email yesterday and received a response within 30 minutes.

You need longer body post Kevin has posted he uses part number 4535 from a 12L3 hope this helps you.