4.10 Gear Ratios
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Senior User
Joined: Mar 2003
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From: King William, VA
4.10 Gear Ratios
Im looking at putting 4.10 gear ratios in place of my 3.27 that is in there now and I notice a lot of ppl have done this. I was just curious at where ppl have got the new gears or where is a good place to look and about what is the cost of this...Thanks
Post Fiend
Joined: Jul 2005
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From: Durant, OK (SOSU)
Boneyards are good sources. Rear end rings and pinions are quite hard to wear out, so pulling them out of a boneyard axle is perfectly fine.
They can be found on eBay as well for well under a hundred bucks.
You have the 8.8" axle, and you will need to recalibrate your speedometer/odometer for it to work properly.
They can be found on eBay as well for well under a hundred bucks.
You have the 8.8" axle, and you will need to recalibrate your speedometer/odometer for it to work properly.
Post Fiend
Joined: Jan 2005
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www.riederracing.com or www.summitracing.com are acouple of good ones. Gear sets run around around 160 bucks, my shop charges 250.00 to throw them in. Shop around for the best install price, I don't know if my shop is the cheapest, but I trust him hee hee.
Elder User
Joined: Apr 2006
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From: Cisco, TX pop: 2500
What other modifications do you plan on doing? Big lift and tires? Hard core engine mods? Because swapping gears from 3.27 to 4.10 with everything else being stock is foolish. IE: if your engine runs at 2000RPM at 70 mph, a gear change like that will make it run at 2500RPM, killing your gas mileage. However, if you have already put bigger tires on, and have lost substantial power, a gear swap is almost mandatory. But
I must ask, why the jump to 4.10's?
I must ask, why the jump to 4.10's?
Post Fiend
Joined: Jan 2005
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I have to disagree there, I think 4:10's will benifit any ranger, stock or not. I've 4 cylinder rangers and jeeps with 4:10's and stock tires and the gears were priceless for added pep. 2 of my 4.0 4x4 rangers had 4:10's, but my 96 4x4 with the 4.0 had 3:27's, it sucked. If mpg is your only concern, then yeah you wouldn't want 4:10's, but if you want to make use of all the power your engine has to offer, gears is the easy way to do it. They can actually help mpg in town driving, but on the highway you will suffer slightly, not much. Thier really big on putting 4:10's in from the factory these days. My 02 wrangler 4 banger had 4:10's and 225's for tires, that thing would wind up, I put 31's on it so I could take a breath between shifts ha ha. I just noticed you have a 96 4x4 like I had, why ford would put 3:27's in a 4x4 is beyond me. Yeah, you for sure need some gears. The bad news is, you'll have to do the front diff as well, or never put it in 4wd, it will wreck the t-case. It will also be easier on your clutch.
Laughing Gas
Joined: Jan 2005
Posts: 1,055
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From: Magnolia, TX
+1 on the 4.10 gears.
My 04 3.0L has them and it's got plenty of pep, and this comes from a former F150 and F250 owner. I hear members here kind of dog on the 3.0 but with those gears, it's no slouch. I run 2500 RPM's at 70 MPH with 235 tires. I'll be going to 245's sometime in the next few months.
Oh, I'm getting 20.X MPG on the highway. Not too shabby IMO.
CMOS
My 04 3.0L has them and it's got plenty of pep, and this comes from a former F150 and F250 owner. I hear members here kind of dog on the 3.0 but with those gears, it's no slouch. I run 2500 RPM's at 70 MPH with 235 tires. I'll be going to 245's sometime in the next few months.
Oh, I'm getting 20.X MPG on the highway. Not too shabby IMO.
CMOS
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Hey, I would like to change my gears also. I do believe I will go with the 4.10's also. Has anyone done a "How to" posting here on the process of installing new gears? Is there any links to other sites on how to install ring and pinion sets!!
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Laughing Gas
Joined: Jan 2005
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From: Magnolia, TX
Originally Posted by danield
Hey, I would like to change my gears also. I do believe I will go with the 4.10's also. Has anyone done a "How to" posting here on the process of installing new gears? Is there any links to other sites on how to install ring and pinion sets!!
Daniel,
Changing the ring and pinion gears is not a shade-tree job. It's very involved. The newly installed gears will need to be "timed" so that the gear teeth hash together in exactly the right position. If these are not set properly, you're rear end will last you maybe 10K as it shreads itself to pieces. IMO - best to have a shop do it that SPECIALIZES in rear ends.
CMOS
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Junk Yard
What if I went the Junk Yard route. I know I can easily change the entire differential's front and back. I had an addiction to burning tires as a teen and have replaced about 4 rearends. From tooo!! much posi, LoL!!! What models of the Ranger came with the 4:10 gears. How can I identify if a truck has 4:10 gears at the junk yard. Do they still put a tag on the rear or would I have to know the vin# code for this option. What year trucks will swap front and rear diff's with my truck. 95' supercab 4x4 4.0 liter auto trans. I have 345 gears now with 31" tires and it lacks power,So I do believe the 4:10's will restore performance.
Post Fiend
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Personally, gears are one of the things I wouldn't get from the boneyard, it's to involving to install them to chance getting a bad set. New ones only cost around 150.00 bucks per end. I would just order a set for the rear and have them installed. As money allowed, then I would get a set for the front. Just don't use your 4wd untill they are in both ends. Just having them in the rear will restore your performance in everyday driving. Some guy's are going with 4:30's in thier 4x4's with bigger tires, but 4:10's will be a big improvement. I would just get new gears and an installation kit and do it right. It's alot of work and a gamble searching the bone yards for good gears. If you did swap out the whole diff, that might not be so bad and you could do that yourself as you wouldn't have to worry about setting up the gears properly. Just finding a good front and rear diff with 4:10's at a decent price at a boneyard could be a challenge, but you may luck out.
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I was thinking about the 4:30 gears because I do alot of towing with this truck. I have a boat,Snowmobiles and a dump trailer for fire wood. I am also looking for a snow plow for the truck. Friends I talked to poh-pohed the 4:30 gears and looked at me like I had rocks in my head. I have 31" itres with the overdrive auto trans . I thought the 4:30 gears would be fine!! Anyone runing these gears let me know how you like them???
Elder User
Joined: Aug 2007
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From: South Carolina
I am running 4.56 with my 2.3L manual trans. It helped it out a lot on those long hills with a load in the truck. I can haul a bed full of split firewood stacked way over the bedsides and still pull the 33" tires around fairly well. It will not beat a diesel but it will get from point a to point b.
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I agree with Wendell, gears buy brand new, or from a trusted friend who had some with super low miles.
$250 is a nice price for gear install. Most shops are $300 plus. And that's generally what they charge whether you install a limited slip unit or not.
Personally 4.10s would be perfect for an auto. 3.45s are nice. I like them in my ranger. IIRC the first gear start ratio is 12.84.(mazda 5 spd) That's a full one point higher than my Roadmaster with 3.73s. I'd have to imagine with 4.10s in my truck, 1st gear would be pretty useless with even a 27" tall tire.
Matt
$250 is a nice price for gear install. Most shops are $300 plus. And that's generally what they charge whether you install a limited slip unit or not.
Personally 4.10s would be perfect for an auto. 3.45s are nice. I like them in my ranger. IIRC the first gear start ratio is 12.84.(mazda 5 spd) That's a full one point higher than my Roadmaster with 3.73s. I'd have to imagine with 4.10s in my truck, 1st gear would be pretty useless with even a 27" tall tire.
Matt