Axle question??
New User
Joined: Mar 2017
Posts: 24
Likes: 0
From: Northern Ontario Canada
while we are chatting about the M275, has anyone found the manufacturers gross weight rating for this axle. I am not talking about what Ford rates it for in our trucks, but what the axle is designed for from Dana.
Logistics Pro
Joined: Apr 2000
Posts: 4,334
Likes: 306
From: Mills River
Based on what I've learned here in the past two months, I wouldn't be at all surprised if the some of the numbers and specs are more like "guidelines", to paraphrase Captain Barbossa in Pirates of the Caribbean.
Jim / crewzer
Hotshot
Joined: Apr 2013
Posts: 10,123
Likes: 657
From: NH
I tried the same thing...didn't hear a peep. That was weeks ago. Guess they only care about you if you want to buy a bunch of axles from them.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
New User
Joined: Jul 2017
Posts: 5
Likes: 0
I can verify the spring packs are different. My brother and I both have 17 powerstrokes. I have a f350 and my brother has the f250. We parked them next to each other and looked for the differences. One thing right away was the overloads, but the spring pack itself is different beyond the overloads. The 250 has a 2 leaf pack where the 350 has 3 leafs. Both trucks are crew cabs but the 250 is a shortbed.
Mountain Pass
Joined: Apr 2017
Posts: 115
Likes: 2
I think the second 250 in that spring spec list is supposed to be a base f350. If you look at the foot note it specifies for an f350.
What I find interesting is the spring spec for the base 250 with 3 leaves is rated at #2781 is the same as an f250 with hd pack with 4 leaves and the base f350 with 4 leaves.
I think karl4cat found that the sterling axle is rated somewhere around 9500lbs.
What I find interesting is the spring spec for the base 250 with 3 leaves is rated at #2781 is the same as an f250 with hd pack with 4 leaves and the base f350 with 4 leaves.
I think karl4cat found that the sterling axle is rated somewhere around 9500lbs.
Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
The Dana 60 up front now has the huge 1550 series u-joints standard across all badges, as well as the 10'' ring gear. The only difference now between these axles and the 450-550 'Super 60' axles are the 'smaller' knuckles and 3/8'' (compared to 1/2") thick tubes.
I was quite surprised when I crawled under a new 250 and measured a full 5'' across the u-joint, compared to a little over 4'' on my 2006 250.
Anyone that has a '17 250 or 350 if you want check to see if you have these large 1550 joints to confirm my findings.
I was quite surprised when I crawled under a new 250 and measured a full 5'' across the u-joint, compared to a little over 4'' on my 2006 250.
Anyone that has a '17 250 or 350 if you want check to see if you have these large 1550 joints to confirm my findings.
New User
Joined: Apr 2017
Posts: 15
Likes: 0
Appreciate this thread which is providing information I have been trying to get for months but unable to get from any of my local dealerships. This is kind of important information to know about in deciding which truck to get.
It sounds like your F250 did not come with the Camper Package (?)
Just summarizing my understanding based on the leaf spring chart Troverman posted (post #15 - Thanks for that!) an F350 comes with at least one additional leaf spring, 5, vs. a camper package equiped F250, with a maximum available 4 leaf springs. The leaf springs on the F350 are beafier than those on the F250 regardless of configuration.
Based on what I have read here it is not possible to get the Dana in either the F250 or F350 with the 6.2 engine, correct ?
Also I am wondering what influence the G transmission has if any other than the differnece in weight. It is only available on the F250. The G transmission sounds like it does all the right things - lighter, improves fuel efficiency and torque, is tuned for the 6.2 engine and yet is not available on the F350. So why isn't it offered on the F350 unless the higher payload of the F350 would exceed the G transimission's capabillities. I was told by Ford that the 6 speed transmission that comes on the F350 has the option to order it with "Power Takeoff".
I can verify the spring packs are different. My brother and I both have 17 powerstrokes. I have a f350 and my brother has the f250. We parked them next to each other and looked for the differences. One thing right away was the overloads, but the spring pack itself is different beyond the overloads. The 250 has a 2 leaf pack where the 350 has 3 leafs. Both trucks are crew cabs but the 250 is a shortbed.
Just summarizing my understanding based on the leaf spring chart Troverman posted (post #15 - Thanks for that!) an F350 comes with at least one additional leaf spring, 5, vs. a camper package equiped F250, with a maximum available 4 leaf springs. The leaf springs on the F350 are beafier than those on the F250 regardless of configuration.
Based on what I have read here it is not possible to get the Dana in either the F250 or F350 with the 6.2 engine, correct ?
Also I am wondering what influence the G transmission has if any other than the differnece in weight. It is only available on the F250. The G transmission sounds like it does all the right things - lighter, improves fuel efficiency and torque, is tuned for the 6.2 engine and yet is not available on the F350. So why isn't it offered on the F350 unless the higher payload of the F350 would exceed the G transimission's capabillities. I was told by Ford that the 6 speed transmission that comes on the F350 has the option to order it with "Power Takeoff".
New User
Joined: Apr 2017
Posts: 15
Likes: 0
Appreciate this thread which is providing information I have been trying to get for months but unable to get from any of my local dealerships.
It sounds like your F250 did not come with the Camper Package (?)
Just summarizing my understanding based on the leaf spring chart Troverman posted (post #15 - Thanks for that!) an F350 comes with at least one additional leaf spring, 5, vs. a camper package equipped F250, with a maximum available 4 leaf springs. The leaf springs on the F350 are beefier than those on the F250 regardless of configuration.
Based on what I have read here it is not possible to get the Dana in either the F250 or F350 with the 6.2 engine, correct ?
Also I am wondering what influence the G transmission has if any other than the difference in weight. It is only available on the F250. The G transmission sounds like it does all the right things - lighter, improves fuel efficiency and torque, is tuned for the 6.2 engine and yet is not available on the F350. So why isn't it offered on the F350 unless the higher payload of the F350 would exceed the G transmission's capabilities. I was told by Ford that the 6 speed transmission that comes on the F350 has the option to order it with "Power Takeoff".
I can verify the spring packs are different. My brother and I both have 17 powerstrokes. I have a f350 and my brother has the f250. We parked them next to each other and looked for the differences. One thing right away was the overloads, but the spring pack itself is different beyond the overloads. The 250 has a 2 leaf pack where the 350 has 3 leafs. Both trucks are crew cabs but the 250 is a shortbed.
Just summarizing my understanding based on the leaf spring chart Troverman posted (post #15 - Thanks for that!) an F350 comes with at least one additional leaf spring, 5, vs. a camper package equipped F250, with a maximum available 4 leaf springs. The leaf springs on the F350 are beefier than those on the F250 regardless of configuration.
Based on what I have read here it is not possible to get the Dana in either the F250 or F350 with the 6.2 engine, correct ?
Also I am wondering what influence the G transmission has if any other than the difference in weight. It is only available on the F250. The G transmission sounds like it does all the right things - lighter, improves fuel efficiency and torque, is tuned for the 6.2 engine and yet is not available on the F350. So why isn't it offered on the F350 unless the higher payload of the F350 would exceed the G transmission's capabilities. I was told by Ford that the 6 speed transmission that comes on the F350 has the option to order it with "Power Takeoff".
