I have a muncie M21 in my 73 firebird right now. But I have a feeling it's about to go... the gears grind alot, and lately it feels kinda sloppy. Should i get it rebuilt and keep the 4 speed? Or switch over to an automatic? An automatic would be kinda nice, but switching wouldn't be fun, or cheap. What do you guys think?
Joel
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73 Firebird, 400 c.i., M-21, 3.42 Posi
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