I dunno about the A-Arms, but I've found just about all the parts off these cars are "close" to other brands, but off just enough so that they wont work w/o extensive modification.. I aint sayin they wont work, but IMOit's alot easier to justorder the stuff online.. If you use one of the Redcat distributors from the forum,like www.URChobby.com they get the stuff shipped within a day or so and it's at your door within 5-7 days of making the order..Payin the shipping is a pain, but if ya put some thought into the order you can get enough stuff to make it worth while..(Ie:get a couple extra glow plugs, maybea hump pack rx battery, a failsafe, couple spare a-arms, some hubs, dogbones, drivecups, etc.. You can have enough to qualifyfor free shipping, or save enough over the LSH prices tocover the s&h outright..) I know it's easier to run to the lsh, but I've had great luck ordering online.. (And their prices are alot better than getting stuff directly from"Redcat") Welcome to the forum!!