Scrap any pre disc D44 unless your doing a 100 point restore. It's not worth the time to mess with if you building a truck to use.
When looking for a replacement get a 74 or newer. 73 and older ran smaller u-joints. I 147 or something. the 74 up 1/2 and 3/4 run a 297. The disc front ends made 70-73 can swap to the larger u-joint axle shaft no problem.
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Grim-Reaper
70 Pontiac LeMans Sport Convertible, worlds longest resto in progress
Looking for 71-72 2wd Blazer or Jimmy Project
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