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East of Broken Bow | They make underdrive units that bolt to the back of the tranny housing. They start at about $2000 plus installation which in your case would probably be more or less bolt it on and have the driveshaft shortened as I assume you just want it slowed down and not shiftable on the move.
Perhaps you can find a salvage one for less? Here is a link to something similar to what I am referring to:
https://northwestfab.com/collections/blackbox-gearbox
Or, if it would fit your rear end, you could go to a low speed rear end.
For about $300 you can buy up to a 4.56 ratio ring and pinion gear set
https://www.ebay.com/itm/175720591307?_trkparms=amclksrc%3DITM%26aid... | |
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1978 Chevy 1 ton- how do I slow it down??
