Front and rear gears

[bbeverag]

2. Fuel economy should jump up

the opposite on this particular item.

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[RCMUSTANG]

the opposite on this particular item.

Nope. Mine went up.

 

[pismo1]

Have them order the gears for warranty purposes.Dont give them an out.

 

[AzScorpion]

Have them order the gears for warranty purposes.Dont give them an out.

I would guess that the gears would still be warranted through the manufacturer and the shop will warranty their labor. I've done this many times with parts (did it with my Eibach on my '19 Ranger) and never had any problems. Plus you don't have to worry about the shop adding $$ onto the price of the parts.

 

[TopoRanger]

I have done a bunch of calculating and shopping with local shops to find an installer. I've settled on 4.46 because the shop that will install them is $600 cheaper than the shop that will install the 4.88. I also am only going to 35s, so I don't need the extra pep.

I'm starting on bolting up my beadlocks with the 37s tonight then alignment on Friday. So, gears would be quite nice to have.

 

[Colo_Ranger]

I'm starting on bolting up my beadlocks with the 37s tonight then alignment on Friday. So, gears would be quite nice to have.

I would love to have 37s, @ranger_danger_rick on IG has them, and they're sick in person. However, the amount of work to get them to fit is outside my purview. Long Travel, wide body, etc are things I am not ready for.

 

[bbeverag]

Nope. Mine went up.

You are unique then, if a manufacturer could increase their fuel economy with a regear that felt good for performance, they would. As it is, they go with higher ratios which make the vehicle feel slower so they can squeeze more economy for their CAFE standards.

 

[RCMUSTANG]

You are unique then, if a manufacturer could increase their fuel economy with a regear that felt good for performance, they would. As it is, they go with higher ratios which make the vehicle feel slower so they can squeeze more economy for their CAFE standards.

Then you don't understand ratios and larger tires. When you put bigger tires it moves the power band. You've moved the normal operating range below the intended threshold. It struggles more at rpm's that are too low. Change the gears and it puts you back into a more efficient range. That's the math. The only other person I know that's actually done the gears said his mileage went up significantly.

 

[Colo_Ranger]

You are unique then, if a manufacturer could increase their fuel economy with a regear that felt good for performance, they would. As it is, they go with higher ratios which make the vehicle feel slower so they can squeeze more economy for their CAFE standards.

You are making assumptions that I am stock. I am not. Gearing offers a mechanical advantage, putting less stress on parts and making it easier for the truck to move the tires.

If I was stock, it very well might not help my economy. But I have 34" tires up from 30" stock. Making it easier to move the tires and getting the rotations closer to stock will definitely help.

 

[Colo_Ranger]

Aside from being done? It's running exactly as I expected it to. Rpm's are in the right range, no more lugging in 10th, no more needing to downshift as low as 46mph. And tons more acceleration of the line.

Have you had a chance to calculate your fuel economy? I am stuck in decision anxiety about 4.46 and 4.88. The calculators seem so close, but I don't want to make the wrong decision.

 

[RCMUSTANG]

Have you had a chance to calculate your fuel economy? I am stuck in decision anxiety about 4.46 and 4.88. The calculators seem so close, but I don't want to make the wrong decision.

Considering my driving patterns since I've done the gears have been worse and I'm still getting about the same and better is working. Stock was around 1900 at 55 mph. That's what I'm back to with the 33's. I would try to shoot for that speed/ rpm range with whatever tires size you have.

 

[Colo_Ranger]

Well... This thread has been about Guinea pigs and I am about to be another one. I found a shop locally that will do the installation of the Yukon gears. That means, I will be the first (that we know of) to install the 4.88 gear ratio. I have 34" tires now and plan to jump up to 35" on the next set, so I think the 4.88 will be good.

I found two shops to work with here in Colorado and one, the one that specializes in only gears and axles, was an insane amount of trouble to deal with. I have finally given up on them. I gave them the part number used here and in the 37s thread and they gave me all kinds of excuses why they wouldn't work. After two weeks of dealing with them, I will not be emailing them back any more. I can't believe that a gear and axle shop would be this unintelligible about gears.

 

[RCMUSTANG]

I'll note again that the Dana engineer i spoke to said that only up to 4.46 would fit the stock housing. It's about the ring gear distance to the housing. Anything closer to the housing and you'll have oiling issues. I would look into that.

 

[Colo_Ranger]

I'll note again that the Dana engineer i spoke to said that only up to 4.46 would fit the stock housing. It's about the ring gear distance to the housing. Anything closer to the housing and you'll have oiling issues. I would look into that.

Yukon gear confirms these will work on the Ranger. I'm trusting their engineering department. I've had Yukon gears in the past and was really happy with them.

 

[Colo_Ranger]

I'll note again that the Dana engineer i spoke to said that only up to 4.46 would fit the stock housing. It's about the ring gear distance to the housing. Anything closer to the housing and you'll have oiling issues. I would look into that.

Well, I had to check and make sure I was on the right track. https://www.yukongear.com/shop/ygk161

On the product page it specifically states the M190.

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