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I would like to get all of your guys' inputs on what it takes to properly run 37's on a JK. I know there are many people on here who run 37in tires, but who has really taken the different factors acting on the various JK systems from the addition of these large meats into consideration before throwing them on? And, what does it take so you aren't just bolting on a ticking timebomb?
From my knowledge, the systems that are affected when putting these large tires on our Jeeps are pretty much just the axles. The differential gearing negates any effect on the drivetrain from added stressors from the larger tires, and since the wheels are unsprung weight, you don't need to worry about the suspension...am I missing anything?
With that, however, there are different choices to make with the axles...stay with the Dana 44's (assuming you have a Rubicon, or upgraded to 44's), or move up to Dana 60's? If you were to stay with the 44's, one would need to upgrade gears and axleshafts in addition to bracing at the front c's to compensate for the added stress from the larger tires. That bracing is what clues me in to that 37's might not be such a good choice for the 44's...that they are simply just not designed for such big of a tire. With some of the freak failures of the axle housings just snapping in half, that persuades me even more that the 44's are not such a good choice.
Dana 60's, on the other hand, are admittedly pretty costly, however they are pretty much guaranteed to be able to handle 37in tires with ease and could run larger without any second thoughts. I'm not all that familiar with Dana 60's, so this is where I need help also. Do you need to upgrade to a new suspension, driveshafts, and steering components? I've seen the Currie Rock Jock 60's and the Dynatrac Pro Rock 60's, and from what I can tell, they have JK bracketry, but does that mean I can bolt my current suspension right up into the same exact places they're at on my 44's? How will the JK's electronics fair with the Dana 60's? What kind of work is involved in setting up Dana 60's?
What my question boils down to is if the Dana 60 is the proper way to run 37's?...if running a Dana 44, even with those upgraded parts (gears, axleshafts, bracing), is just a ticking bomb waiting to go?
Thanks for all your help.
From my knowledge, the systems that are affected when putting these large tires on our Jeeps are pretty much just the axles. The differential gearing negates any effect on the drivetrain from added stressors from the larger tires, and since the wheels are unsprung weight, you don't need to worry about the suspension...am I missing anything?
With that, however, there are different choices to make with the axles...stay with the Dana 44's (assuming you have a Rubicon, or upgraded to 44's), or move up to Dana 60's? If you were to stay with the 44's, one would need to upgrade gears and axleshafts in addition to bracing at the front c's to compensate for the added stress from the larger tires. That bracing is what clues me in to that 37's might not be such a good choice for the 44's...that they are simply just not designed for such big of a tire. With some of the freak failures of the axle housings just snapping in half, that persuades me even more that the 44's are not such a good choice.
Dana 60's, on the other hand, are admittedly pretty costly, however they are pretty much guaranteed to be able to handle 37in tires with ease and could run larger without any second thoughts. I'm not all that familiar with Dana 60's, so this is where I need help also. Do you need to upgrade to a new suspension, driveshafts, and steering components? I've seen the Currie Rock Jock 60's and the Dynatrac Pro Rock 60's, and from what I can tell, they have JK bracketry, but does that mean I can bolt my current suspension right up into the same exact places they're at on my 44's? How will the JK's electronics fair with the Dana 60's? What kind of work is involved in setting up Dana 60's?
What my question boils down to is if the Dana 60 is the proper way to run 37's?...if running a Dana 44, even with those upgraded parts (gears, axleshafts, bracing), is just a ticking bomb waiting to go?
Thanks for all your help.
), I haven't heard either of them having issues running 37" tires on their D44 axles.
