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Hey guys got a gold tub I'm restoring. I did RPM arms front and rear along with b4 axle conversion.can someon tell me what the large spacer is for that comes in conversion? Also did the worlds kit black turnbuckles, the rears were too long once the ball cups were on . I had to take off a few threads to get them to right length.why would this be? Lastly I bought thevJconcepts rulux wheel for the B4,this is the right wheel for conversion right?the wheel rubbed the lower shock mount when I had it mounted to the outer most hole on the arm.i got everything adjusted and it seems ok ,thanks in advance.

If you're referring to the #6802 'RC10 Rear Wheel Conversion' kit, the spacers go between the bearings inside the hub carriers. They allow you to tighten down the wheels without pinching the bearings, causing binding.

Not sure about the turnbuckle length. Are you using the innermost holes under the wing tubes?

The kit mentioned above allows you to use wheels for more modern non-tapered 3/16" axles but does nothing to change the required deeper offset. Wheel #6805 (comes in white or yellow) is what you need. They use the correct axle size, are the right offset, and are 2.2" in diameter to use modern tires. They are what's used in the new Worlds kit. As you've noticed, B4 wheels don't work due to their shallower offset.

Thanks for the reply. That explains everything . I'll be ordering new wheels

Still unclear as to why these wheels won't work if this conversion allows the use of b4 wheels

this converts the axles from 1/4" to 3/16" to use 2.2" wheels, not change the width of the chassis. the b4 wheels are for a wider suspension width, so don't fit correctly.

if you were to do the 'what's old is new' using the klien rear arms and longer dogbones, you could use B4 wheels.

if all you did was change the axle diameter, these are the wheels you need.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDWJL&P=SM

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDWJK&P=M

Thanks dudes. Went ahead and ordered the rear wheels in white

I managed to get B4 wheels to fit with stock arms using B4 hub carriers, custom works spacer, and a yokomo dogbone.

Hey guys one more question,would I be able to use RC10T rear arms with longer tie rod and dog bones? I bought a pair by accident and have them.

Well forget that ,did a mock up and it's too wide,looks goofy.