It uses a 7 3/4" ring and pinion that is only available in 4.27:1,
4.88:1, 5.38:1, and 6.17 ratios. The Dana 25 came with with three
different styles of axle shaft joints, the Cardan-Cross style being
the best. Military vehicles with the Dana 25 include the MB, M38,
M38A1, and M170. CJs with the Dana 25 include the CJ-2A, CJ-3A,
CJ-3B, CJ-5, CJ-5A, CJ-6, and CJ-6A. The Willys Wagon and Willys
Pickup used the Dana 25, but obviously the two wheel drive Wagons
and Pickups did not use it. The CJs used a small drum brake around
9" in diamber. The Willys Wagons and Willys Pickup used larger
brakes. The picture on top is from a 1950 CJ-3A with the small
brakes. The picture below is from a 50s Willys Wagon with the large
11"x2" brakes. The Willys Wagon and Willys Pickup version is alos
much wider than the CJ version.
Specs
Model/Version
Spring Pads
Wheel to Wheel
Years
Dana 25/Military
28"
51"
'41-'65
Dana 25/CJ
28"
51"
'46-'65
Dana 25/Willys Wagon
28"
NA
'46-'65
Dana 25/Willys Pickup
28"
NA
'47-'65
Dana 25/FC Trucks
NA
NA
'57-'65
Dana 25/Wagoneer
NA
NA
'62-'65
Comments and questions from our Readers
confused / Cottage Grove, OR, UNITED STATES
Posted D52 10 2008 03:59PM
Just bought a 63 willys cj5 with a dana 25. Promptly broke the left front spindle and I want to replace the old front end with a Dana 30. Is this a bolt on tranformation? Is there anyone out there refubishing dana 25s or 30s with the disk brake conversion? I would love to simply purchase a Dana 30 that has been refubished with new disks and bolt it on rather than try to rebuild one myself.
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Posted D52 10 2008 03:59PM
