silly Q? of the day: changing gear ratios on a 4x4? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 05-31-2005
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silly Q? of the day: changing gear ratios on a 4x4?

Obviously everyone has discussed changing out the rear ring and pinion on a Ranger, but what about changing the front axle? I feel painfully ignorant, but is there a regular 8.8" diff up front too, or something different, and whats involved in changing it?
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Old 05-31-2005
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there has to be something up front and you would have to change it
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Old 05-31-2005
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right, but is it another 8.8 ring and pinion you need, or something else altogether?
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Old 05-31-2005
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No. The front diff is a Dana 35, but built a little differant so normal Dana 35 parts wont work, except the R&P, I believe, it has a smaller carrier. But yea, its a D35.
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Old 05-31-2005
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you cannot have differnt axle ratios in the front and rear differentials, they must be the same if u r goin to use the 4wd or else you will destroy driveline parts, transfer case, etc

and like jason said, the front is a Dana 35 so it is a completly differnt differntial from the rear 7.5" or 8.8"
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Old 06-01-2005
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Quote:
Originally Posted by bjv11
you cannot have differnt axle ratios in the front and rear differentials, they must be the same if u r goin to use the 4wd or else you will destroy driveline parts, transfer case, etc

and like jason said, the front is a Dana 35 so it is a completly differnt differntial from the rear 7.5" or 8.8"

Actually if I remember correctly you do have different axle ratios on a 4x4. But they're not drastically different, they're very tiny, like "3.11 in back, 3.12 in front" I cannot remember the exact numbers my friends F-150 had, but they are different so that the wheels don't all rotate the same. Someone can explain why they don't rotate equally, im drawing a blank lol. Oh yeah, That is also why you shouldn't drive in 4x4 on dry pavement; you need to allow your tires to sometimes lose a tiny bit of traction so that they don't wind up.

Aaron
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Old 06-01-2005
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Ok, so where would someone go to buy a gearset for the front axle?
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Old 06-01-2005
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How did you know I was needing to know this...
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Old 06-01-2005
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What size gear are you going to get ?
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Old 06-01-2005
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4.10's going in an Explorer rear from 3.73
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Old 06-01-2005
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Quote:
Originally Posted by Wowak
Ok, so where would someone go to buy a gearset for the front axle?
Anywhere that has gears will have them. 4WP, DrivetrainDirect, Local Shops, sorry my brains asleep still, thats all I cant think of, but they arnt rare.
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Old 06-01-2005
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Originally Posted by Wowak
Ok, so where would someone go to buy a gearset for the front axle?
Check TRS, I think it's called Randy's Ring and Pinion gives a discount to TRS members or something...that's who I'll probably be getting my stuff from. Great reputation among TRS people and you know how hardcore they are.
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Old 06-01-2005
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yes you HAVE to have the same gear ratio in front and back be it BOTH 3.73 or BOTH 4.10....if not say bye bye to that transfercase and the trans!
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Old 06-01-2005
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Ford and Dana axles do not share the same axle ratios but they are so close it doesnt matter. for example: my dana 44 front is a 3.54:1 ratio and the 8.8 rear is a 3.55:1. but u can not run 3.73:1 and 3.55:1s or it'll bind and well u know, POOF.
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Old 06-01-2005
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Brian, I got my stuff from this guy. Give him a call or email or whatever and see what he can do for you on a package deal. You'll probably want to do seals and/or bearings while you're in there, and he can help you out there also.

Jeremy Ayers, J.T. Parts and Accessories (Specializing in Differential Parts and Service)
Phone: 425-879-6192
email: [email protected]
Website: http://www.ringpinion.biz
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  #16  
Old 06-01-2005
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Will do!
Ok so since I know nothing about all this. Stock is 3.73. I'm putting an Explorer rear with new 4.10's on the rear. What do I need to rebuild that axle and convert the front "axle" to 4.10? Not sure what to get or look for on his site since I don't know what I need.

I'm assuming this is it: Ring & Pinion, Ford 8.8" Reverse Rotation, 4.10 Motive Gear?
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Old 06-01-2005
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I should have said: Brian (Wowak) and Bryan -- I was addressing Wowak, so I didn't misspell you name again, Bryan!!!
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Old 06-01-2005
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Quote:
Originally Posted by Shalafi49
Will do!
Ok so since I know nothing about all this. Stock is 3.73. I'm putting an Explorer rear with new 4.10's on the rear. What do I need to rebuild that axle and convert the front "axle" to 4.10? Not sure what to get or look for on his site since I don't know what I need.

I'm assuming this is it: Ring & Pinion, Ford 8.8" Reverse Rotation, 4.10 Motive Gear?
No no no, what you need is a Ring & Pinion for a dana 35 hybrid ford ranger, you want 4.10:1 gears. That should get you what you need. YOu should be able to tell them what you have and what you what. You are also going to need a shim kit, and I hope a pro is installing your gears. Or at least someone who has done it and has all the tools. Good luck.
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Old 06-01-2005
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Quote:
Originally Posted by n3elz
I should have said: Brian (Wowak) and Bryan -- I was addressing Wowak, so I didn't misspell you name again, Bryan!!!
I forgot his name was Brian, I just know him as WOWak.sorry for hijacking your post man.....

It's kool tho John thanx for the info that you gave to WOWak that I stole..MUHAHAHA
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  #20  
Old 06-01-2005
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Quote:
Originally Posted by SuperSonicFX4
No no no, what you need is a Ring & Pinion for a dana 35 hybrid ford ranger, you want 4.10:1 gears. That should get you what you need. YOu should be able to tell them what you have and what you what. You are also going to need a shim kit, and I hope a pro is installing your gears. Or at least someone who has done it and has all the tools. Good luck.
Yeah a buddy of mine will be doin the work..Thanx for the info man!
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  #21  
Old 06-01-2005
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do they make an ected for the front axle? i at least want limited slip.
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  #22  
Old 06-01-2005
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i dont know about a ected locker but i know they make front lockers for the d35... i personally would go with a l/s to save some money but thats just me!...
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  #23  
Old 06-01-2005
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isnt the D35 in the IFS front a hybrid?
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  #24  
Old 06-01-2005
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Quote:
Originally Posted by loneFX4
do they make an ected for the front axle? i at least want limited slip.
I don't think they make a limited slip. Check over at http://www.explorerforum.com/forums/ do a search. I'm pretty sure the only option you have it locker or nothing and that is automatic locker like I have.

And yes the front axle is a dana 35 hybrid.
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  #25  
Old 06-01-2005
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Originally Posted by SuperSonicFX4
You are also going to need a shim kit, and I hope a pro is installing your gears. Or at least someone who has done it and has all the tools. Good luck.
AMEN!!! Without the help I had doing mine, I would have been really struggling. Even with the help we had some issues (tightening the pinion nut for instance -- takes 350 lb/ft to crush the crush sleeve).

A "master rebuild" kit is a great idea. It contains bearings, shims, gear marking compound, seals, etc.
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