difference between M38 and M38A1 starter

[ktm25089]

Hello,
how can identify which starter is??number of teeth or something else?

Thanks
George

[Zane]

the late style m38 and all m38a1 starters is the same, the early m38 starter is different. if the starter has a nose cone it is the late type starter if it takes a bushing in the bell housing it is the early type. Im sure Wes has pics of both if he'll post them.

[wesk]

Both starters also use the 9 tooth pinion gear.


Top is late M38 and all M38A1 MCZ4001UT (Delco made X10483 starter for this same application.
Bottom is early M38 MBP4301UT

Note: Pinion gear diameters are not the same. They must be matched to their correct flywheel ring gear.

http://img.mypicgallery.com/jeep-electr ... 07.jpg[img][/img]

[ktm25089]

Thanks for the answers