Axle ratios
Logistics Pro
Joined: Jul 2002
Posts: 4,821
Likes: 19
From: South Dakota
http://www.fordtrucks.com/article/id...r_Decoder.html
This may be helpful if you are looking at your own rig.
As far as gears go, it's a mixed bag, while I wish I had 3.73's, my rig tows my boat real good with 3.55's.
This may be helpful if you are looking at your own rig.
As far as gears go, it's a mixed bag, while I wish I had 3.73's, my rig tows my boat real good with 3.55's.
Postmaster
Joined: Jul 2001
Posts: 4,038
Likes: 3
From: South Kitsap County, WA
If you want 3.73s and are looking for a sure thing... you'll need to look for ones with the 7700 option. Ford did make a few regular duty F150s with 3.73s, but I think they were all 4X's.
-Kerry
-Kerry
Elder User
Joined: Sep 2004
Posts: 538
Likes: 2
From: Florida
LMAO! I got 3.73's, in a cardboard box in my toolbox! Gave $100 for 'em, came off a new '05 with 8K miles on the ticker. My truck still has the 3.31 rear end it came with. Saving up for LS and to have someone competent swap 'em out for me.
Postmaster
Joined: Jul 2001
Posts: 4,038
Likes: 3
From: South Kitsap County, WA
Originally Posted by Rocky J
LMAO! I got 3.73's, in a cardboard box in my toolbox! Gave $100 for 'em, came off a new '05 with 8K miles on the ticker. My truck still has the 3.31 rear end it came with. Saving up for LS and to have someone competent swap 'em out for me.
Yeah, a 3.31 set is great for mileage, but not so great for pulling. That's why the 3.55s sell... a mixture of both worlds. Seems the 3.73 may becoming that middle ground as well, with 4.10s being the pulling gear.
-Kerry
Elder User
Joined: Sep 2004
Posts: 538
Likes: 2
From: Florida
I would have been happy with 3.55's if these trucks still came with 15" rims, but this pig has 17" rims and 275/ shoes from the factory. Combined with the 3.31 gearing it's about worthless except for looking good. I sure can't work out of it.
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
I wish mine has 3.73's too, but it is too costly to do the front and rear. I also have 265/70R17's on mine.
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Senior User
Joined: Jun 2003
Posts: 434
Likes: 0
From: Hawaii
My truck came with 3.55's also. After I put on 33" tires, I really noticed a lack of off the line get up and go. I installed 4.10's which work great now!
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Senior User
Joined: Nov 2003
Posts: 173
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From: Missoula, Montana
Originally Posted by cgartly
Does anyone know the approx cost to order a set of 373s for front and rear?
I am planning on getting 4.10's in my 2004 Heritage.
Gears make a big difference.
