Hang on, that 25 tooth is special; it comes out of the close-ratio T/A box
The ratios were 2.47-1.77-1.34-1.00 with splits of .72-.76-.75
The cluster should have 30-26-23-17
That trans was only built for two or three years.
Because first gear is so high, it usually requires about 10% more gear to get moving; for example , if you had the regular box and 3.55s, your starter would be 2.66x3.55= 9.44.... and 9.44/2.47= 3.82s ;rounds up or down to 3.73/3.91
A replacement M/D is gonna be hard to find, and nothing else fits. :(
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I tried this box in my streeter and found it unsatisfactory with 3.55s cuz the starter was only 8.77 with 3.55s; and my combo likes 11/1(3.09 x 3.55). I did like the splits tho; great for a small block, and excellent with 4.30s...... but that puts hi-way use on the back-burner...... at least for most of us..... and I live 20 minutes from anywhere, all hiway.
