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Quadbox teardown


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Gday Everyone.

I have a quad box that is jumping out of 1st gear and I want to pull it apart and fix it up.

Has anyone pulled one apart before?

Is there anything I should be careful of? ie. Is there anything that is normally damaged/discarded like a bearing or different retainers?

Ive got a Mack manual that gives basic instructions and thats it.

Any suggestions or input woulod be appreciated.

Thanks and Regards,


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Don't miss the oil pump plunger in the input shaft and also remember to adjust the end play in the lower counter shafts. The rear yoke nut is very tight and its been 35 years since I have worked one but sounds like the torque is around 600 lb

glenn akers

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