Re: Is this a TH400 or 4L80??
K30 is a guarantee if it’s an original automatic truck. in automatic form they only came with the 400/205. After the early 80’s there wasn’t even an option for a 205 in anything but the K30 if I’m not mistaken. 85-91 K30 has the most desirable round pattern 205 case. (what I pictured above) The 85+ stuff does bring good money when it comes up for sale.
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