My 155W currently has an Eaton 2 speed rear , model 20503, with 6.71 / 9.13 gears. From what I understand, they made (3) gear sets for that rear, 5.43 / 6.39, 6.14 / 8.36 and 6.71 / 9.13. I was able to locate a complete rear with 5.43's that came out of a H257 with a 180 Cummins. Both pumpkins have the same casting numbers, etc. After taking it apart I found out the pinions is damaged.
So I am in need of another set of 5.43 gears. I did find both a new and used set in Ohio but you could buy several parts trucks for that much money. Before I go down that road, I wanted to check here first...
Here are the details...
28656 Casting Number
16 spline axles
1 1/4" pinion nut
1 3/4" major spline dimension on pinion
41962 Ring Gear
48820 Pinion Gear (I believe...)
5.43's are made up of a 7 tooth pinion and 38 tooth ring gear. These numbers are stamped on the head of the pinion but sometimes hard to read. There is also a large pipe plug (either hex of 1/2" square) on the pumpkin, next to the fill plug. Right above this the ratio will be stamped.


If anyone has any leads, please let me know...
Thanks!
Tom