Thread: What Is This Muncie 4-Speed Out Of?
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Old 02-17-2026, 12:05 PM
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oldman66gto oldman66gto is offline
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Join Date: May 2025
Location: St. Augustine Fl
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Default HELP....Muncie M20 4Speed
Hi,
Saw this post and I too, need some help on decoding a Muncie 4-speed.
Pics attached, and THANKS for the help.
I just came out of my '66 GTO, when I put in a Tremec TKX

Trans case#3885010
Side plate #3884685
Tail shaft# 3846429
Attached Thumbnails
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Last edited by oldman66gto; 02-17-2026 at 12:23 PM.
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