gears

[4x497F150]

Where a good place to get some 4.10 for a 4x4 97 f150

[fordmerc]

Try going to the dealer and asking to see a Ford Racing catalog. I got my 4.10 gears out of there and they were the cheapest I found at the time (it was 5 years ago) I also worked at the dealership, but we did not get discounts from the catalog.

[Fifty150]

Package Dimensions: 5.50H x 11.50W x 15.50D
Weight: 20.00#
Catalog Page: N/A
Instruction Sheet: Click here to view the parts instruction sheet.
Warranty Available: No

M-4209-G456*
PART NUMBER RATIO AXLE
MUSTANG/RANGER/F-150 8.8"
M-4209-F308* 3.08:1 -
M-4209-F327* 3.27:1 -
M-4209-G355A* 3.55:1 -
M-4209-F373N* 3.73:1 ³ -
M-4209-G410A* 4.10:1 -
M-4209-G430M* 4.30:1 -
M-4209-G456* 4.56:1 -
M-4209-G488* 4.88:1 -
M-4209-G513* 5.13:1 ¹ -
MUSTANG/RANGER 7.5"
M-4209-L345* 3.45:1 -
M-4209-L373M* 3.73:1 -
M-4209-L410N* 4.10:1 -
5.4L F-150, EXPEDITION, NAVIGATOR, F-250/350 ²
M-3410-L410* 4.10:1 8.8" (front) 1996-97
M-4209-H373* 3.73:1 9.75" (rear)
M-3410-L373* 3.73:1 8.8" (front)
M-4209-J410* 4.10:1 9.75" (rear)
M-4209-J456* 4.56:1 9.75" (rear)
M-4209-K410* 4.10:1 10.25" (rear)
M-4209-K456* 4.56:1 10.25" (rear)

NOTES:
¹ May require rear cover modifications.
² These ring and pinions have been developed to increase towing capability of 5.4L Expeditions.
³ Replaces our popular M-4209-F373. New manufacturing technology utilizing a Face Hob Process which features a single pass pinion tooth machining operation compared to a conventional three pass process for machining. CNC cut and lapped gear teeth. Higher strength and better quality gears are produced with the Face Hob Process. NOTE: These new gears look a little different, the gear teeth are cut on a different angle and the ring gear has a bevel on the back of the gear.

[4x497F150]

I only got one more question what rpm do u run with 4.10 and what rpmwith 4.56 at 70mph with 35/12.50r16

[melman]

I will have a gently used set of Yukon 4.56 rear gears for a 9 3/4" rear for sale tomorrow (1.5 yrs. in truck and never off road). I have to use my truck to tow my Lightning so I am putting 3.73's back in. Let me know if you are interested.
I would have the front's also (8.8 diff.) but I am just dropping the drive shaft for now.

[4x4kid]

Originally Posted by 4x497F150

I only got one more question what rpm do u run with 4.10 and what rpmwith 4.56 at 70mph with 35/12.50r16

I just got my 4.56 Yukons not too long ago and im sittin at about 2000 rpm's at 70. Not too bad IMO.

[ECGS]

www.eastcoastgearsupply.com If thats not the cheapest price you can find Call me 919-672-2705.

[4x497F150]

Thanks for all your help. I believe 4.10s should put it back in its power band. This website may help other people decide which one they need.

http://www.rocky-road.com/calculator.html

[4x497F150]

If I just change the back gears and not the front will it hurt anything if I don't use 4wd?

[4x4kid]

you should be fine doing just the rear but whatever you do...do not put it in 4WD!!!

[4x497F150]

I'm going to get the front one when I get a little extra cash.