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On your rear axle, why not repair it. That should be a dana 44 which is strong enough for that vehicle and parts are readily available. Just have to determine which dana 44 you have. There were some changes around 1968-1969.
 

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That must have been some wild ride to break that rear axle. Could it be repaired, yes but you probably need a good axle shop to do it. Going to need a new tube and axle shaft at least. Now for dimensions on that axle in case you want to consider an alternate. The Scout 2 which was later than yours had axles that were 57.1" wide. That is basically mounting surface to mounting surface. The 800 axles are narrower at 55.7" wide. Used axles for you vehicle are out there but some of the prices will make your eyes water. I saw one company that has them for $2153.26. Had to look twice. Thought that might be a custom replacement price. LOL. Maybe repairing the old axle isn't such a bad idea. An early Ford Bronco is 58" so it's a bit too wide. There are a few Jeeps that are in that 55.7" range. The '81-85 CJ8 Scrambler and "82-86 CJ7 are 55.0" which is close. Another thing you'd want to be sure of is the bolt pattern on the hubs unless you plan on changing the front axle too. You'd have to be careful if you looked for a Jeep rear because they had some narrow tracks in those years which wouldn't work. Also need to know what axle ratio you have. There should be a tag on the lower left side facing the rear with the ratio number. I believe standard axle ratios on the 800 4-196 were 4.09/4.10 but you'd want to check that. Not sure if there are any more modern vehicle with axles that would possibly fit.
 
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