BoP Labbeta

BoP Lab / Rules / Letter #25375

#25375 Axle cages in SM

From Jim Drago · SM · Recommended to the Board

Axle cages in SM

#25375 from Jim Drago · Recommended to the Board · Minutes (2019-01 Fastrack)

Thank you for your letter. Effective 1/1/19:
In SM, GCR section 9.1.7.c.2.i, revise and add wording as follows:
“The half-shaft CV Joints shall be an OEM or OEM equivalent part. The internal cage and
bearing dimensions are unrestricted. This rule is effective until 12/31/18.”
“Rear drive axle assembly consisting of constant velocity Joints (inner and outer), axle shafts,
boots and all associated parts that make up a complete drive axle assembly must be an OEM
part. All internal component dimensions are un-restricted but must be ferrous material.”
In SM, GCR section 9.1.7.c, add the wording as follows:

Show 4 more lines

“The use of any painting, coating, plating, or impregnating substance (e.g., anti-friction, thermal
barrier, oil shedding coatings, chrome, anodizing, REM, isotropic finishing, etc.) to any internal
engine surface, internal transmission, drive axle assembly or differential surface, internal or
external surfaces of the intake manifold, exhaust manifold or downtube is prohibited.”