speedway motors kit would only work if you can weld to the pumpkin and had a bunch of room above or below the axle IMO
you can make the center peice out of 3/16" plate or 1/4" if ya wanted beefy or if ya want expensive get a billet one made.
L
LAYEDOUT69
+1y
Cut/modify a sweet ass design in a SBC flywheel or cam gear.
TRUKBLDR
+1y
what kind of design you want I can get any type made for $100 made out of 1/4 steel mine looks like a curved Z. hit me if interested Germ
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pootytang
+1y
i reversed the concept on mine and used a front wheel drive hub. i made a plate to bolt to the hub and a crossmember across the back of the frame behind the axle. the used heim joints on the ends of the links and attached them from the ends of the plate and the other ends to the outer back of the axle.
guiltybydesign
+1y
Ive made a few designs in my cad program, some look like Z's, some look like daggers, some look like some kind of sharp pointy thing.