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Forum: 4x4

12-24-2021, 09:24 AM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

I'm very happy with 4.10's......speedo was...

I'm very happy with 4.10's......speedo was reading 10% low with 3.73s and now reads around 4% low. For me it's a good trade off between mileage (I hope! haven't checked it yet..been too giddy with...

Forum: 4x4

10-29-2021, 08:38 AM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

I just finished my 3.73 to 4.10 conversion. 5.4L...

I just finished my 3.73 to 4.10 conversion. 5.4L 285/70-17's. I'm very pleased, much improved. The van still downshifts on steep climbs out of OD but no longer shifts down to 2nd and I can...

Forum: 4x4

10-10-2021, 08:25 AM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

I've been running 5.4L 3.73 gears 4R75...

I've been running 5.4L 3.73 gears 4R75 transmission with 285/70/17's for about 7 years without any transmission issues.

Forum: 4x4

07-31-2021, 05:40 PM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

..after a little wire brushing ......it's a...

..after a little wire brushing ......it's a Dana....not sure exactly what yet...

if the bottom number is a date code something doesn't make sense...it says 11 10 00.....and my van is a 2008

...

Forum: 4x4

07-31-2021, 05:18 PM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

Thanks MG!! .....next question.....how do I...

Thanks MG!!

.....next question.....how do I determine what rear axle I have? Dana 60/70/80? Ford 10.25/10.5?

2008 Econoline passenger full float...axle code 34

Tag on the axle says
...

Forum: 4x4

07-31-2021, 01:48 PM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

Ray/1der has a 7.3 and went with 33's and...

Ray/1der has a 7.3 and went with 33's and re-geared from 3.55 to 3.73......I imagine he'll be along here any minute....

:b1:

Forum: 4x4

07-31-2021, 11:44 AM

Replies: 44

Re-gearing from 3.73 to 4.10?

Views: 8,793

Posted By boywonder

I'm considering re-gearing from 3.73's to...

I'm considering re-gearing from 3.73's to 4.10's........

I have a kingpin Dana 60 on the front and the stock full floater on the rear (2008 Passenger RB).

Will this require a different...

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