3.73 to 4.10 gear change
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Junior User
Joined: Jan 2007
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3.73 to 4.10 gear change
Got a little more rv so, I replaced my 3.73 rear end with a 4.10 on my 2K 5.4 auto SC SB. Took a 1200 mile fishing trip to International Falls, MN and beyond. Got 17 mpg compared to 16. I like it a lot better. Doesn't downshift on every bump in the road. Love this site.
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Junior User
Joined: Jan 2007
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3.73 to 4.10 gear change
I understand there is no speedo gear on my 2000 f250. It's all electronic. At any rate the speedo is still dead on as it was before. I was more afraid of the shift points. If they changed, it was for the better.
Fleet Mechanic
Joined: Jan 2003
Posts: 1,812
Likes: 15
From: Central Ohio
I take it that was without pulling a trailer... but still thats really good... man your gonna make me wish I didnt order the V10 with that kinda milleage, my 6 banger super shorty F150 barely gets 17 on the hwy!
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
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From: Washington State
It will be off when the tires are changed to a different size.
Senior User
Joined: Dec 2007
Posts: 130
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From: Augusta, GA
Did you swap the gears yourself? Im looking at replacing my 3.73s, with probably 4.56 or 4.88s, Im running 285s on it (33s) and it pulls a little week. I will probably also have the tranny rebuilt once I get my POS Honda straightened out.
Junior User
Joined: Jun 2009
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Junior User
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I know my limitations. No I had it done by an outfit called ring and pinion. They have done stuff for me before so I know they are good.
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Junior User
Joined: Apr 2009
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From: Oklahoma City
I have been told on mine to go from the 3.73's to 4.30's.. Should I go lower? or is 4.30's ok?
Are they hard to do yourself on this vehicle.. I have rebuilt motors and such but haven't had the pleasure to tackle a rear end yet.. Just a shade tree backyard mech... Thanks..
And MC9. Hope I get improvements like that...
Are they hard to do yourself on this vehicle.. I have rebuilt motors and such but haven't had the pleasure to tackle a rear end yet.. Just a shade tree backyard mech... Thanks..
And MC9. Hope I get improvements like that...
