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Found out 2017 F250/F350 SRW are running Ford corporate/Sterling 10.5 in the rear and a new Dana "Super 60" in the front, anyone have anymore info on this front axle?
what is your sources of info ? to the best of my knowledge the super60 was never used on anything smaller than f550. the gvw of the smaller trucks isnt high enough to warrant such an axle
Up front, its basically unchanged with the use of a 35 spline Super Dana 60. Out back, however, there are several variations depending on the capacity of the truck. For those with an F-250, you'll be sporting a similar Sterling 10.5 that has been used for years, still featuring a 10.5" ring gear. Moving from there, the F-350 Single Rear Wheel (SRW) models get a Dana M275 with a 10.8" ring gear and the F-350 Dual Rear Wheel (DRW) versions are bumped to a Dana M300 with a massive 11.8" ring gear. The 10.5" has 35 spline axles, where the M275 has 36 splines, and the M300 boasts 37 splines. From the factory, these housings were typically stuffed with the popular 3.31 ratio, but also had options for 3.55, 3.73, or 4.30 ratios.
Found out 2017 F250/F350 SRW are running Ford corporate/Sterling 10.5 in the rear and a new Dana "Super 60" in the front, anyone have anymore info on this front axle?
The front axle is unchanged. The rear will be a standard Sterling 10.5 if it's a gas SRW 350 or a non HD 250 with either motor. The HD 250 6.7 and 6.7 SRW 350 get the DANA M275. The DRW 350 get's a LD DANA M300 and the 450 get's a HD M300.
Any more info on this Dana M300 ? It seems relatively new.
Its a massive axle and the ring gear is 11.8". The ABS sensors are inboard near the diff. The available ratios are 3.55 and 4.10 for the 350 dually, and 4.30 for the 450. There is an optional limited slip. The 450 uses larger diameter half shafts with more splines - that is the primary difference.
Absolutely. Its a great axle - many folks were 'disappointed' to realize they weren't getting the new axles, but the 10.5" was used on all Super Duty SRW truck from the previous generation and before. It handled the 440/860 diesels just fine.
I'd trust a 10.5" to do everything my new DANA 275 does. In fact I did on my previous truck. The DANA was supposedly added due to a very small decrease in parasitic loss due to a different contact patch between the gears (and ever so slightly improved mileage due to this) and not because it wasn't up to the job. Out of the truck, it's rated to 9750#.
Up front, its basically unchanged with the use of a 35 spline Super Dana 60. Out back, however, there are several variations depending on the capacity of the truck. For those with an F-250, you'll be sporting a similar Sterling 10.5 that has been used for years, still featuring a 10.5" ring gear. Moving from there, the F-350 Single Rear Wheel (SRW) models get a Dana M275 with a 10.8" ring gear and the F-350 Dual Rear Wheel (DRW) versions are bumped to a Dana M300 with a massive 11.8" ring gear. The 10.5" has 35 spline axles, where the M275 has 36 splines, and the M300 boasts 37 splines. From the factory, these housings were typically stuffed with the popular 3.31 ratio, but also had options for 3.55, 3.73, or 4.30 ratios.
the wording of that article is a bit misleading. the f250 and 350 doesnt use the super60. the knuckles are bigger and the tubes may be bigger as well. look at a newer f550 and compare it to your f350 and youll easily be able to see the difference
the wording of that article is a bit misleading. the f250 and 350 doesnt use the super60. the knuckles are bigger and the tubes may be bigger as well. look at a newer f550 and compare it to your f350 and youll easily be able to see the difference
The Ford literature itself says they all use the Super 60. You may be getting confused with the wide-track front axle used on the F-450 / F-550. It is the same axle but with the extensions on the end and because the axle is wider, the knuckles are different to allow the wheels to turn in sharper since there is more room before the wheels hit the frame.
sorry but you may be confused. super60 has far thicker/bigger knuckles than the f250/350 . it has nothing to do with turning radius. the super60 is a 7000lb rated axle if im not mistaken, where as the f250/350 axle is is only 6000
for the poeple that dont know, the 250/350 does use some components of the super60. in lamens terms its more than a regular 60 but not quit a full fledged super60. call it a medium60 if you will
Like I already acknowledged, the 450/550 have the "wide track" version which essentially has extensions on the end of the axle with different knuckles which allow for sharper turn in since there is more clearance. The differential, axle half shaft diameter and spline count...even the axle u-joints...all the same. The 450/550 does have an arbitrarily higher rating...7k vs 6k...based upon GAWR specs for the specific application by Ford. The axle itself is no stronger. Here's the spec from the 2017 Ford body builder's guide:
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