Wow! ive done the same but to a B4 chassis and front end, only with a losi rear end! yours looks much better though!!....
only problem is with mine, i keep braking the rear pivot block....
ive noticed on yours you seem to have a custom brace made for the hinge pins, jus wondering... would you be able to nock me one up for the rear of my car if i gave you some dimensions? im willing to pay good money (not too much though

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love your car
Tom