I've restored four AD truck steering wheels - two for my trucks and two for friends. I used the KBS Coatings two part epoxy on the first two and gap filling CA glue on the second two.
The KBS coating epoxy applied in the recommended process resulted in a good looking wheel, but after a while I noticed slight, almost invisible, hairline cracks where the epoxy met the hard rubber.This process is also messy (with black dust from the rubber and epoxy everywhere) and very time consuming.
I do a fair amount of wood working and had some gap filling CA glue on hand and decided to try it on another wheel for my GMC truck. It has the added benefit of being thin enough to be absorbed into the cracks by capillary action so no "V ing" out the crack is required. Some small cracks were filled with one pass and others took several coats to fill the crack. One wheel had large cracks and looked as bad as the NOS one pictured in Brad's photo. Only minimal sanding is required after filling. After a year and one half since completing the wheels using the CA glue I have seen no hairline cracks. I got my glue from Woodcraft Supply but I am sure you can find other sources. CA glue I would look for the words "gap filling" and you don't want the thin instant glue for going two pieces of wood together.
Mike

Last edited by Huck; 06/29/2015 12:17 PM.