krahm94yota
Full Member
1994 p/u, detroit locker rear, 7" of combined lift, 35x10.5 pro comps, warn m8000 winch
Posts: 105
|
Post by krahm94yota on Sept 15, 2004 13:29:50 GMT -5
I have been looking around for gears, kind of browsing, and I keep seeing these reverse rotation gears. What are they and what do they do for you? Just a bit of curiousity on my part. Please give feed back if you know, or you are running them. Thanks
|
|
|
|
Post by fourwd1 on Sept 15, 2004 14:40:49 GMT -5
They are used in high pinion front 3rds.
|
|
|
|
Post by DeadlyPeace on Sept 15, 2004 16:07:40 GMT -5
As fourwd1 said they are use for "high pinion 3rd's" which are good for getting about 1.5" more clearance under the pinion and also help with your driveline angle. The bad thing about them (from what I've heard) is that they are weaker then a standard 3rd.
|
|
krahm94yota
Full Member
1994 p/u, detroit locker rear, 7" of combined lift, 35x10.5 pro comps, warn m8000 winch
Posts: 105
|
Post by krahm94yota on Sept 16, 2004 4:39:39 GMT -5
Thanks for the info. I wondered what they were for a while. I got reminded of it yesterday so I had to ask. Thanks again.
|
|
|
|
Post by fourwd1 on Sept 23, 2004 13:43:25 GMT -5
It's a normal (rear) 3rd that is weaker when used in the front, because when in the front it's using the Coast side of the gears insted of the Run/Driven side.
Reverse cut gears used in the front are made to use the Run/Driven side, so they are no weaker.
|
|
|
|
Post by Sean on Sept 23, 2004 15:51:24 GMT -5
It's a normal (rear) 3rd that is weaker when used in the front, because when in the front it's using the Coast side of the gears insted of the Run/Driven side. Reverse cut gears used in the front are made to use the Run/Driven side, so they are no weaker. Very true. Hi Pinion is stronger in the front while going foward while the regular is stronger in the rear while moving forward. |
|
krahm94yota
Full Member
1994 p/u, detroit locker rear, 7" of combined lift, 35x10.5 pro comps, warn m8000 winch
Posts: 105
|
Post by krahm94yota on Sept 30, 2004 16:57:11 GMT -5
Thanks for the info. No one has been able to explain it to me.  |
|
|
|
Post by kjmcdaniel on Oct 23, 2004 7:09:19 GMT -5
Some other info about reverse cut gears / high pinion diffs. Because of the way the gears are cut, with a high pinion diff in the rear, when the rig is going forward, the pinion gear is acctually PULLING against the pinion nut, not pushing against the pinion bearings. The same would be true with a high pinion in the front with the rig in reverse, or a low pinion in the rear in reverse for that matter. I found this out the hard way. I went against everything everyone said about a high pinion diff in the rear. I installed one. The first time out I was climbing this ledge, and the dirvers rear tire was wedged in an undercut. BAM!!!! The pinion nut broke!!!! When it did the pinion shot backwards and put about a 1/2" deep gouge in the casting for my Detroit locker.  It sounded like a 12 gauge shot gun went off in the back seat. I did a lot of research, and thinking about the reverse cut gears, and the aspect of driving on the coast side, and decided that for a trail rig only, the benefit of the added clearance in the rear was worth the risk. I never thought about the other stresses that are caused by having reverse cut gears.  |
|
[/glow]
