Snacktime's Broken Bronco Build

[Snacktime]

Do you know what the exact differences are between m190 and m210? Not basic marketing stuff. Are there any good engineering specs available?

https://media.spicerparts.com/cfs/f...token=eyJhdXRoVG9rZW4iOiIifQ==&store=original

You can start running parts and compare? But otherwise no one has done a side by side on a bench.

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[87-Z28]

Back to messing with the suspension again. Did a few quick measurements, some pictures and updated my excel sheet.

I was hoping you were going to give up searching for the ideal lift vs ride characteristics on the factory springs and try dobinsons. Purely for selfish reasons . I can’t find any spring rate info on the dobinsons tho.

 

[BAUS67]

I believe the M190 has an axle disconnect (FAD). The motor in the above pic.

The M210 does not have this.

Another thing that would be different is the spline count.

 

[Snacktime]

I was hoping you were going to give up searching for the ideal lift vs ride characteristics on the factory springs and try dobinsons. Purely for selfish reasons . I can’t find any spring rate info on the dobinsons tho.

Ohh you have no clue how tempting it is, but the bronco budget is Zero dollars for the next 2-3 months. Summer time activities are eating up my extra cash.

 

[87-Z28]

Yeah. I hear that.

 

[mpeugeot]

I believe the M190 has an axle disconnect (FAD). The motor in the above pic.

The M210 does not have this.

Another thing that would be different is the spline count.

Only some do. I think that any advanced 4x4 transfer case has the M190 without the FAD.

 

[kodiakisland]

The obvious, which is ring gear size from 190 to 210, but I have no idea how that translates to increased strength and I think the M190 is aluminum.
Maybe the strength difference doesn't matter since the M190 isn't locked.

 

[BAUS67]

Only some do. I think that any advanced 4x4 transfer case has the M190 without the FAD.

Good to know. I'll make note of that. Thanks.

 

[87-Z28]

The obvious, which is ring gear size from 190 to 210, but I have no idea how that translates to increased strength and I think the M190 is aluminum.
Maybe the strength difference doesn't matter since the M190 isn't locked.

Yeah that is what I am curious about from a design perspective. Clearly the m210 was designed to handle greater loads due to the locker. So was it also designed to handle more load due to tire weight and rotational inertia from larger tires or is it just more robust due to the locker. Curious what the design intend was with respect to larger tires.

 

[Snacktime]

We don't have enough information on what the failure point is in the front. Ring gears, spider gears or intermediate shaft are the biggest items. I am not 100% sold that the locked m210 is actually physically stronger due to the locker physical size. Need to check bearing and dimensions.

 

[dgorsett]

Only some do. I think that any advanced 4x4 transfer case has the M190 without the FAD.

And, for some odd reason, BB with 4.27, part time 4x4 and M190 do not have FAD. I'm good with that.

 

[Snacktime]

And, for some odd reason, BB with 4.27, part time 4x4 and M190 do not have FAD. I'm good with that.

See this may be a bad thing, the FAD has more internal support (bearings) and more metal on the outside. Current failures of non-Fad m210 have been the intermediate shaft on the passenger side and destruction of the non-fad aluminum housing. Its funny when you look at what's actually failing and it doesn't seem to be the carrier or gears.

 

[dgorsett]

See this may be a bad thing, the FAD has more internal support (bearings) and more metal on the outside. Current failures of non-Fad m210 have been the intermediate shaft on the passenger side and destruction of the non-fad aluminum housing. Its funny when you look at what's actually failing and it doesn't seem to be the carrier or gears.

Interesting, your logic makes sense.

 

[Snacktime]

Shout out to @Tricky Mike for the awesome one of a kind limited edition used parts.

 

[Snacktime]

Well redid the front and the new springs are pretty much the same lift...

Sitting at 7" of up travel and 3" of down so we will leave it be for a couple of wheeling trips to see if this is an improvement. I accidentally over extended my driver's CV axle so that add hours to the whole deal.

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