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I dont know if these are the mog9's yall are talking about but the guy who won the 2002 top truck challenge had a set of ford 9" axles with unimog outers in his bronco buggy. I've read that in addition to the wide gear selection, the third member of the 9" center has to be flipped upside down so the wheels will rotate the right direction and also, bam, high pinion. Pimp stuff.
The pinion is high enough already. Then you have to start worrying about your driveshaft hitting things.
you have to flip it so that when you have it in a forward gear it doesnt go in reverse. the portals have only two gears. therefore a normally rotating third member would have several "reverse" gears and one "forward" gear
but there's no way to get them with less than like 6 or 7:1 ratio?
Grayson, I would think any available gearset for the Ford 9 would work with the Mog outers in a Mog9.
Flipping the 9 inch center section isn't quite that simple, measures need to be taken to ensure proper oiling.
Nathan, I paid $6300 for 2 completely rebuilt steering axles with custom billet hubs, 13" rotors, Wilwood calipers, and the pinion conversion. They can be had for considerably less, or considerably more, depending on the options you choose. I bought mine in '01, and since they're more popular for rock crawling the prices may have changed.
not that ive heard of cause of the two types of gearing the axle has
do stock 9" come with any higher than 3.54 gearing? If not, then gearing is not a good reason to go mog-9
you can get 2.73 gears or around there. just look at other vendors besides the ones that cater to the offroad crowd. If you can search for a speed shop that sells parts for bonneville speedsters then you may find something lower. A lot of bonneville cars run ratios in the 2.5 range, they are so low (numerically) that they need a push start to get them rolling, often they are pushed up to 40-60 moh before they let out the clutch in first gear! ...and this is w/ relatively short tires in the 28 inch range.
bunch of pics of mog axles in the bruiser buildup
or
http://www.texasoffroad.net/galleries/lonestar/album117
a 9" gets weaker with higher gears tho, right?
All axles get weaker with higher gears because the pinion size gets smaller. The beauty of the mog axles is that they have reduction at the hubs, so they don't need much reduction in the diffs.
I meant higher gears, as in less reduction, lower numerically, i.e. I am asking if on a 9" a ratio of 1:3.55 weaker than 1:4.88,
Toy axles get weaker with lower (higher numerically, more reduction) gears, i.e. on a toy axle 1:4.10 is stronger than 1:5.29
I think it varies by axle, though I don't think you're gonna break anything with less than half the stress being put through it vs standard single-reduction axles
the beauty is that in any normal situation the r&p will only see about half the torque the tires can put to the ground. however, if you get a tire stuck in a crack, you can still put the same amount of torque on the r&p that any axle would see.
Yes.Quote:
Originally Posted by uglyota
and over twice as much at the wheels :cool:Quote:
Originally Posted by agjohn02