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Re: Rockwell T-221 durability for the long haul
Quote:
Originally Posted by maxwoof
I have been running my 62 for about 10 years now. Not a lot of miles, but a few times a year, I make 120 mile highway trips. I havent had a problem. I max out at about 55-60 mph - its a k-20. I would say keep the oil level up and the input shaft bearings fresh. They make a "high oil level kit" which is a street elbow that goes where the fill plug is. Let's you keep the oil level about an inch or so higher. I'm not running one, but plan to. I think the problem is they leak, and when the oil gets low, they fail. Good luck with yours.
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I have made 800 mile highway trips towing but usually only tow at 55 to 66 mph. You want to keep the shaft speed of the rockwell at 2500 or lower to help keep it cool. synthetic oil in it also helps as well as Lucas synthetic gear additive.
loaded heavy and extended highway speed are what will cause him problems if it was just a daily driver with light towing or occasional heavy towing as I do I would say keep the rockwell.
Sorry for all the edits.
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63 k20 with cummins 4bt, owned sence 1982
Last edited by dieseldude4bt; 05-24-2018 at 07:55 PM.
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