aluminum rearend

[dvogtvpe]

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Super Cub aluminum rear. building 2 of these for a customer for the NQS .060 class
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it has a dart rear, 17 - 20 gears with a 26% od, these guys have several tractors from .060 to V twin. I gear all their trannys the same. if they have a failure and one tractor isn't doing well in points, rearend's can be swapped with just an overdrive change.

[dvogtvpe]

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this ones just about complete. total savings of around 75 lbs. just have to drill out the axles bolt threads to install wheel studs

[ACecil]

That is neat! Thanks for the pics.

[dvogtvpe]

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the bearing on the left is what like to use inplace of the stock front pinion bearing. its a double row maxload bearing.

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the bearing on the left here is what I use in place of the stock rear pinion bearing. its a 1 piece double row maxload . how many of you have notice the outer part of rear pinion bearing being pushed into the trans case or back into the pinion? this prevents that by holding the pinion shaft straight. you do need to hone out the case to allow it to slide when adjusting the pinion depth.

[austin8214]

Don would you care to share the part # for those bearings?

Has anyone ever tried to use an aluminum cub rearend for pulling? I'm sure it wouldn't hold up to a altered engine but maybe it would be fine for a stocker.

[Sam Mac]

Originally Posted by austin8214

Don would you care to share the part # for those bearings?

Has anyone ever tried to use an aluminum cub rearend for pulling? I'm sure it wouldn't hold up to a altered engine but maybe it would be fine for a stocker.

I have rebuilt plenty of Nascar style race transmissions and from the looks of that case if you can bust that something more important is coming with it.

[austin8214]

Originally Posted by Sam Mac

I have rebuilt plenty of Nascar style race transmissions and from the looks of that case if you can bust that something more important is coming with it.

I agree completely. But I was not talking about the case pictured above. The early MTD cub had a cast aluminum transmission.

[Sam Mac]

Originally Posted by austin8214

I agree completely. But I was not talking about the case pictured above. The early MTD cub had a cast aluminum transmission.

I doubt that even the MTD case would be the weak point considering the HP and given the traction available. My guess is that the gears, shafts or drive line would fail first. Just my 2 cents.

[dvogtvpe]

a friend of mine tried the cub cadet aluminum case. it pushed rs bearing cap out of the case and damaged the case. that was in a 30 cube. I doubt it would hold in an SA.
The bearings aren't cheap. about $80 each. if you want the numbers PM me and I'll get them for you.

[dvogtvpe]

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well finally finished up these 2 rearends. that's about 6500 - 7000 in rearends on that cart.
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for those who can machine I thought this was a pretty simple way to make some nice billet aluminum axle tubes.