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Hey I seen in a Mustang and Fast Fords <--- fast fords hahaa...but anyway...I seen in the mag where they "polish" ring and pinion sets in a tumbler with a mixture and it makes them up to 40% stronger because it takes stress risers off and what not. Dunno how true it is and what it would do for us 4wheelers but its something to look into. Do that AND have them cryo'ed and I bet they could handle pretty much anything. I'll check the mag and see if they mentioned a business name.
Hope this isnt a repost. We all hear how the 5.71 gearsets are weak in comparison to 4.10 4.56 and even 4.88 gears... But this guy makes a good argumentAny one out there with real world experience on the trail with lockers, dual cases etc?? AND running 5.71's???I would immagine Cryo'd 5.71's might not be a bad alternative if your lacking gear on some hills/towing etc....http://www.gearinstalls.com/410suck.htm
4.10s break... The E-Locker I got from FIREBALL had a wasted 4.10 gear set, that's why I also got it so cheap I have heard that they changed the Formula Toy rules because of this. They used to only allow stock 4.10 gearing to be used, because it can save money -- since this is supposed to be a budget and family-friendly series -- but so many people have been blowing 4.10s that I believe they removed that rule
I really wish The off road world had its own Mythbusters crew to check these theories out.
A properly set up rear end w 5.71 is plenty strong. I read the artilcle, spoke with Zuk and swapped in a set of 5.71's and am very happy.And no, this is not on some mall crawler. These are on a 84 Toyota class 7s dezert race truck. I am very hard on this truck yet have no concerns about running over 2' whoops, in 2nd or 3rd gear, with the built 22re (140hp) at 5200 rpm and turning 33" BFG Baja's (extremely heavy tire) on a V6 spool. They have run an entire race season with no issues. And I have friends that get 1 - 2 races out of a set of Ford 9" gears with a simular truck.However, like the article says you must run a quality gear (ours are Precisoin V6 gears - not GG or a shimmed 4cyl gear). a solid pinion spacer and properly set up the rear diff. This includes torking the snot out of the carrier bearings.The next time I do the rear end I will have the gears cryo's - to prevent the minute scuffing that does occur due to the hard racing use.
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