MP3023 LD ATC (with 27T input shaft spline)

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The high/low clutch (9) has bias pointing engagement teeth. The leading edges of the teeth are not symmetrical.
The rear output shaft rear bearing retaining rings (27 and 29) are larger ID than the MP 3023 ATC with 32T input splines but smaller than the MP 3024. The inner diameter of the ring groove at the rear output shaft (19) measures 37.5 mm (1.476 in).
The rear output shaft bearing assembly (28) inner diameter measures 40 mm (1.575 in). The width measures 18 mm (0.709 in).
The rear output shaft bearing assembly surface on the rear output shaft (19) measures 40 mm (1.575 in).