My perfect Ranger with an imperfect transmission...

[Markubis]

I've posted this on here before but here's what's involved in tearing these transmissions apart. I sure hope this guys knows where everything goes.

Back in the 80's I brought my C4 from my hot-rodded Mercury Capri to a shop that specializes in transmission rebuilds. I was having him install a ported valve body and racing clutches into my C4.
I watched him disembowel it to the condition in this video in under 5 minutes. My jaw dropped at how quickly it came apart.

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[dtech]

There was the " I threw a rod saga" with actual damage pics and somehow I threw the tranny or the value body is blown just doesn't bring the same level of cachet to me. And the battery failures are just plain out and out boring.

a modern tranny is certainly a very complex piece of machinery, like others I'm hoping it doesn't happen frequently, and hope the repair/replacement isn't overly financially stressing for the OP.

And agree with others comments on the aftermarket tranny market self promotion article, but like with dampers companies manage to find ways to market and sell stuff eke to out a living.

 

[Gibs45]

285s...

Lord knows our trucks look amazing with this tire size, but do we think this could have been the issue? My understanding is with a tire that size, something needs to be done in terms of gearing to compensate? Best of luck OP, hope you get this resolved soon!

 

[dtech]

I didn’t see anyone say it’s a warranty issue. If they did they are delusional, he has 98k miles.

I have a 20yr 200k powertrain warranty on mine that I pray I’ll never have to use.

In my email just this am from Ford, never bought one but inching closer and closer , mostly owing to HVAC box failure but now add tranny failure on the worrying pile. However I'm wired a bit differently (might be from 1 to many snake bites) and should I buy the warranty I'll feel better if something does fail.

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[D Fresh]

Lord knows our trucks look amazing with this tire size, but do we think this could have been the issue? My understanding is with a tire that size, something needs to be done in terms of gearing to compensate? Best of luck OP, hope you get this resolved soon!

285 is simply the width. Has nothing to do with height.

Gearing changes aren't really a thing for our Rangers just yet. And certainly aren't needed for the 32"s and 33"s most here top out at.

 

[Blmpkn]

Lord knows our trucks look amazing with this tire size, but do we think this could have been the issue? My understanding is with a tire that size, something needs to be done in terms of gearing to compensate? Best of luck OP, hope you get this resolved soon!

The truck has plenty of gear to get things rolling.. first gear is something like 4.5:1 and it's 1:1 gear isn't until 7th..

 

[Gibs45]

285 is simply the width. Has nothing to do with height.

Gearing changes aren't really a thing for our Rangers just yet. And certainly aren't needed for the 32"s and 33"s most here top out at.

I learned something new today. Thanks for clearing that up!

 

[Gibs45]

The truck has plenty of gear to get things rolling.. first gear is something like 4.5:1 and it's 1:1 gear isn't until 7th..

That’s good to know. Thank you!

 

[Dr. Zaius]

285 is simply the width. Has nothing to do with height.

Gearing changes aren't really a thing for our Rangers just yet. And certainly aren't needed for the 32"s and 33"s most here top out at.

True, but Sid is running 285/70/17 and the 70 = 70% aspect ratio or sidewall height, which will vary according to width.

The 285/70/17 tires are almost exactly 2" taller than the factory 265/65/17 stockers.

The most common sizes on here are 265/70/17 (32") and 285/70/17 (33") tires and yes, the Ranger has no need of a gearing change to turn them.

I can't see 33" tires causing a problem for this transmission when many F150s have that size or larger stock.

 

[D Fresh]

True, but Sid is running 285/70/17 and the 70 = 70% aspect ratio or sidewall height, which will vary according to width.

The 285/70/17 tires are almost exactly 2" taller than the factory 265/65/17 stockers.

The most common sizes on here are 265/70/17 (32") and 285/70/17 (33") tires and yes, the Ranger has no need of a gearing change to turn them.

I can't see 33" tires causing a problem for this transmission when many F150s have that size or larger stock.

Exactly, 33"s are not the issue.

It was my way of saying that trying to communicate tire size by just the width can be a bit lazy.

For example, if I said I run 255s many here might assume a factory tire since that width is an option. But my 33" 255/80 17s are 2½"s taller than any factory tire.

 

[Frenchy]

True, but Sid is running 285/70/17 and the 70 = 70% aspect ratio or sidewall height, which will vary according to width.

The 285/70/17 tires are almost exactly 2" taller than the factory 265/65/17 stockers.

The most common sizes on here are 265/70/17 (32") and 285/70/17 (33") tires and yes, the Ranger has no need of a gearing change to turn them.

I can't see 33" tires causing a problem for this transmission when many F150s have that size or larger stock.

Unless it was a General Motors Vehicle LOL!! They will claim a bigger wheel and tire will be the cause of an Engine or Transmission Blowing up!! I delt with this when working Automotive. Just a bit of why I dont like that manufacturer anymore

 

[HenryMac]

285 is simply the width. Has nothing to do with height.

Compare the actual diameters of the tires and you'll find that the diameter does vary, as an example the only difference in the tires below is one is a 265 and the other is a 285, but both are 65 aspect ratio.

Cooper DISCOVERER AT3 LT
265-65-17
Dia. 30.5 inches

Cooper DISCOVERER AT3 LT
285-65-17
Dia. 31.57 inches

True, but Sid is running 285/70/17 and the 70 = 70% aspect ratio or sidewall height, which will vary according to width.

The 285/70/17 tires are almost exactly 2" taller than the factory 265/65/17 stockers.

The most common sizes on here are 265/70/17 (32") and 285/70/17 (33") tires and yes, the Ranger has no need of a gearing change to turn them.

I can't see 33" tires causing a problem for this transmission when many F150s have that size or larger stock.

Tire diameter does change overall gearing, and that does affect transmission wear. The bigger the tire diameter, the harder the torque converter has to work to get the vehicle moving.

That likely means premature wear, compared to the stock configuration. How much premature, that is the question.

You mention an F-150 and 33" tires. That would be a valid point if the F-150 was running the same differential gears and the same transmission / torque converter, with the same ECO boost motor as the Ranger. Or in other words, the same exact driveline components.

Is that really the case? I'm asking, because I don't know.

 

[Frenchy]

Compare the actual diameters of the tires and you'll find that the diameter does vary, as an example the only difference in the tires below is one is a 265 and the other is a 285, but both are 65 aspect ratio.

Cooper DISCOVERER AT3 LT
265-65-17
Dia. 30.5 inches

Cooper DISCOVERER AT3 LT
285-65-17
Dia. 31.57 inches



Tire diameter does change overall gearing, and that does affect transmission wear. The bigger the tire diameter, the harder the torque converter has to work to get the vehicle moving.

That likely means premature wear, compared to the stock configuration. How much premature, that is the question.

You mention an F-150 and 33" tires. That would be a valid point if the F-150 was running the same differential gears and the same transmission / torque converter, with the same ECO boost motor as the Ranger. Or in other words, the same exact driveline components.

Is that really the case? I'm asking, because I don't know.

Valid points to an extent. That I am aware of the Explorer and the Bronco are the onlt vehicles thay share the exact same transmission and engine. If not mistaken the F-150 has a slightly different confirmation for the transmission where its not a 10R80. I might be wrong though. I am aware that the Superiority trucks with the 6.7 run the 10R140 wich is a much stronger transmission. If I remember correctly the last set of numbers indicate the torque rating on the transmission. 80 meaning 800 FT LBS and 140 meaning 1400 FT LBS. Is there a version inbetween? Possibly, but I cant remember

 

[D Fresh]

Compare the actual diameters of the tires and you'll find that the diameter does vary, as an example the only difference in the tires below is one is a 265 and the other is a 285, but both are 65 aspect ratio.

Cooper DISCOVERER AT3 LT
265-65-17
Dia. 30.5 inches

Cooper DISCOVERER AT3 LT
285-65-17
Dia. 31.57

But 65 is not the only aspect ratio available.

Again, my point was that discussing a tire size by one measurement is pointless.

A "285" could be a low aspect street tire which in that case would be smaller than factory.

It would be like saying that one house is bigger than the other because it's longer.

Simply saying 285s doesn't really tell anybody anything. In reality, the tire's width is not germane to the discussion, only it's height or diameter is.

 

[HenryMac]

But 65 is not the only aspect ratio available.

Again, my point was that discussing a tire size by one measurement is pointless.

A "285" could be a low aspect street tire which in that case would be smaller than factory.

It would be like saying that one house is bigger than the other because it's longer.

Simply saying 285s doesn't really tell anybody anything. In reality, the tire's width is not germane to the discussion, only it's height or diameter is.

You're previous post was misleading, as is proven by this post:

I learned something new today. Thanks for clearing that up!

Fact is, the tire diameter does change if all you do is go from a 265-65-17 (stock size for most Rangers) to a 285-65-17, that's the point being made.

I just replaced my 265-65-17 Hankooks with 265-65-17 Michelins... and the diameters were different.

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