The Dana/Spicer Model 70 is an automotive axle manufactured by Dana Holding Corporation and has been used in OEM heavy duty applications by Chevrolet, Dodge, and Ford.
It can be identified by its straight axle tubes, 10 bolt asymmetrical cover, and a "70" cast in to the housing, which is visually similar to the Dana 60.
Gross axle weight ratings are often lowered by the vehicle manufacturer for safety and tire reasons.
All of these Dana 70 front axles were closed knuckle, with king pins and had a GAWR of 6000 lbs.
GM began making 4x4 Chevrolet Kodiaks and GMC Topkicks that utilize a Dana 70 front axle for the 2005-2009 models.
[citation needed] these axles were in gm, Chevrolet and Navistar international on 4200 and terrestar cabs, and still used in today on gmc/Chevrolet/international 4500,5500 trucks.
These upgrades gave the Dana 70HD a gross axle rating of 10,000 lb (4,500 kg).
The Dana 70 front drive axles used in the Chevrolet Kodiaks and GMC Topkicks also had these features.
The axle was available or optional for the Big Three until 1994 when Dodge used the Dana 80 for its dual rear wheel trucks instead.
In the UK the 70HD Dana axles were license built by Salisbury Engineering in an early 10/23 spline version with a 4.3 tonnes (9,500 lb) rating for the Ford A-series truck with a European 6 × 205 mm (8.1 in) DIN standard hub bolt pattern.