Forum Discussion
harmanrk
Feb 04, 2018Explorer
goducks10 wrote:
Actually on Fords there is a difference between the 250-350-450.
Different rear ends with difference size bearings and splines.
Page 40.
https://www.fleet.ford.com/truckbbas/topics/2018/Esb2018-F-250_F-350_F-450-SD-Pickups-Specs.pdf
Actually there is not. On the Ford discussion group, its been known for a while now, the information in that chart is incorrect. The 250 and 350 axles are listed as 'Ford Sterling M275' and 'Ford & Dana' respectively. To start, there is no Ford Sterling M275 It is either the Ford Sterling 10.5, or the Dana M275. Both trucks are available with both. 350 Gas gets the Sterling, 350 Diesel gets the Dana. 250 gets the Sterling, unless the HD Tow package is selected (Diesel only option), then it gets the Dana as well.
The mechanical difference, is the spring rate of the rear spring packs. Beyond that, some plastic trim, with 2 vs 3, and a sheet of paper with a declared vehicle class.
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