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The Dana 70 rear axle was first used in the Dodge W300 in 1958. The Dana 70 started out using 10 spline pinions and 23 spline axle shafts. The later, more current, Dana 70 axles use 29 spline pinions and 32 or 35 spline axle shafts. Dana offered two different limited slip differentials with the Dana 70, the "Power-Lok" and the "Trac-Lok."
It can be identified by its straight axle tubes, 10 bolt asymmetrical cover, and a "80" cast into the housing. Dana 80's are made as full floating, rear axles only and are a step up in overall strength compared to the Dana 70. 1988 Ford was the first company to use the Dana 80.
The Sterling 10.5 axle is an automotive axle manufactured by Ford Motor Company at the Sterling Axle Plant in Sterling Heights, MI. It was first used in model year 1985 Ford trucks. The axle was developed to replace the Dana 60 and Dana 70. The Sterling 10.5 axle is currently only made as a full floating axle.
M-series chassis use a Dana 60 or 70 or Spicer M70 solid rear axles with leaf springs. Frames were used by Winnebago , Champion , Apollo MotorHomes and several other RV manufacturers. The line was offered in four ratings, M-300, M-375 (also known as M-400 between 1969–1973), [ 1 ] M-500, and M-600 depending on the application.
Dana 61 axle tag showing 3.73:1 ratio [1] The Dana 61 was made in semi-float and full-float axles for select 4×2 and 4x4 Ford 3 ⁄ 4-ton and 1 Ton Pickups and Vans from 1974 to 1987. A Dana 61 front axle was selectively used in Dodge 4×4 3 ⁄ 4-ton and 1 Ton pickups from 1987 to 1993. Although 3.07:1 and 3.31:1 gear sets are common for a ...
A Dana 60 rear axle was used on heavy-duty 2500s with the 5.9L V8. A Dana 70 rear axle was used in 2500s with a V10 or diesel and automatic transmission combination. A Dana 80 rear axle was used on 2500s with a manual transmission and V10 or diesel engine combination. Every 3500 was made with a Dana 80.
The Dana 44 Front axle first saw use in the 1950s and still in use today. Dana 44 Front axles were known for utilizing locking hubs or a center axle disconnect system. However, a permanently locked-in Dana 44 is not uncommon. The Dana 44 has seen use in 1/4-, 1/2-, 3/4-, and 1-ton rated trucks.
Identification between the two can be made by examining the hub: the protrusion of the hub through the center of the wheel denotes the preferred 10.5-inch full-floating rear axle. While the 9.5-inch rear end exhibits its own durability, it is generally considered less favorable for high-torque applications.