Dog Rings:

1. Visually inspect the dog rings for cracks propagating in the radii at the bases of the individual teeth.

2. Inspect the sides of the dog rings' teeth for excessive wear. If the teeth are rounded more than 3/32 to 1/8 inch the dog ring should be replaced.

3. On older transmissions, the third gear dog ring has a tendency to contact the third gear pinion. This can be seen by the contact marks on the back side of the dog ring (that side which mates against the gear). This can be alleviated by either grinding approximately a 0.030" taper starting at the base circle of the dog ring and extending to the tip of each individual tooth, or by replacing the dog ring with a newer styled part.

http://www.jericoperformance.com/assemblymanual.htm

Citat:

Dog Rings:

1. Visually inspect the dog rings for cracks propagating in the radii at the bases of the individual teeth.

2. Inspect the sides of the dog rings' teeth for excessive wear. If the teeth are rounded more than 3/32 to 1/8 inch the dog ring should be replaced.

3. On older transmissions, the third gear dog ring has a tendency to contact the third gear pinion. This can be seen by the contact marks on the back side of the dog ring (that side which mates against the gear). This can be alleviated by either grinding approximately a 0.030" taper starting at the base circle of the dog ring and extending to the tip of each individual tooth, or by replacing the dog ring with a newer styled part.

På min Hewland låda rekomenderar dom max 1/3 rundhet, alltså max 1/3 av ringens bredd får vara avrundad/nedsliten. Jag har dock kört till 1/2 utan problem, iofs har jag lite effekt och låg vikt.