Anyone re-geared?
Posting Guru
Joined: Aug 2015
Posts: 2,399
Likes: 12
14.1, over the past 9500 miles. I posted it when it was 14.3 before my last big mountain tow.
That includes about 8% of the miles towing at 26K GCW and lower mileage the first few tank while the engine was breaking in and running winter fuel.
Towing, I typically get 8.5 - 10 (8.5 at 70+, 10 at 55-60), empty, I typically get 15.5.
That includes about 8% of the miles towing at 26K GCW and lower mileage the first few tank while the engine was breaking in and running winter fuel.
Towing, I typically get 8.5 - 10 (8.5 at 70+, 10 at 55-60), empty, I typically get 15.5.
Thread Starter
|
Junior User
Joined: Jan 2017
Posts: 68
Likes: 0
Ok talked to west coast diffs and The gear shop. Both really nice and helpful (reasonable prices too). But I am being told there are currently no options to run 4.10?? They are saying 3.73 and 4.30 only. Anyone have any insight? Seems like 4.10 would be the sweet spot for the 6.7 and 37's..
Posting Guru
Joined: Aug 2015
Posts: 2,399
Likes: 12
The 4.30 feels great with my factory 31.9" tires on my F450. Surely a 4.30 isn't too much for 37's!
Senior User
Joined: Jul 2017
Posts: 190
Likes: 0
I too wanted 4.10, but will probably go with 4.30. Ford Parts Unlimited have both front and rear 4.30 gears for $542 shipped...
Thread Starter
|
Junior User
Joined: Jan 2017
Posts: 68
Likes: 0
I was told no - so I guess no current models are offered with the 4.10's? With the f250 axles anyway..
Good to hear!! It's my daily and I drive mostly city but it does go on long road trips unloaded (so 80mph) - I was worried about the rpm's being too high.
Good to hear!! It's my daily and I drive mostly city but it does go on long road trips unloaded (so 80mph) - I was worried about the rpm's being too high.
Fleet Mechanic
Joined: Sep 2016
Posts: 1,613
Likes: 156
4.10 is an option on a F350 dually. so the gears should be available for at least the bigger axle. I believe the F250 uses the same Sterling axle the Super Duty has had for years, so 4.10 should be available
Senior User
Joined: Jul 2017
Posts: 190
Likes: 0
You need to be very careful about buying gears from previous year Super Dutys. On the 2017 250s they have a 35 spline axel shaft where previous year models with the same Dana 60 front and Sterling 10.5 rear, they used 31 an 37. If you want to play it safe I'd stick to the oem 3.73 or 4.30 35 spline gears.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Senior User
Joined: Apr 2017
Posts: 275
Likes: 0
From: Kansas City
I was on the Ford parts website today looking up gears and the do have 4.10 gears for the front but not for the rear. Only 3.73 and 4.30 for the rear.
I too wanted 4.10, but will probably go with 4.30. Ford Parts Unlimited have both front and rear 4.30 gears for $542 shipped...
I too wanted 4.10, but will probably go with 4.30. Ford Parts Unlimited have both front and rear 4.30 gears for $542 shipped...
Senior User
Joined: Jul 2017
Posts: 190
Likes: 0
What size tires did you input and what did you enter for your transmission ratio? I believe the ratio on the automatic is 0.67:1 in 6th gear...
Senior User
Joined: Apr 2017
Posts: 275
Likes: 0
From: Kansas City
Apple's to Apple's it doesn't matter the the transmission or tire size as long as you compare 37s to 37s or 31s to 31s the final gear ratio is the only thing that changes
Mountain Pass
Joined: Feb 2017
Posts: 131
Likes: 3
Did you swap your gears yet? Was wondering if the 3.31 carrier is the same carrier used for the 3.55, 3.73 and 4.30's.
Roly
Thread
Thread Starter
Forum
Replies
Last Post
dewalters8886
1999 - 2016 Super Duty
44
Feb 17, 2017 10:29 AM
gorkah
Excursion - King of SUVs
6
Sep 15, 2015 10:47 AM