New member, Tommy with 59 t-bird
Let me see if I can correct this for you, Tommy. Here are the pix I posted back on Page 4. The HX LARGE case tranny with a 11.6 measurement is for the 1961-1965 Tbirds. The HX LARGE case tranny with a 10 7/8" measurement is for the 1958-1960 Squarebirds. The MX Medium case has a measurement of 10 7/32".. It is my understanding, (correct me if I am wrong) that the OEM '58-'60 Squarebirds with the 352CI engine had the HX Medium 10 7/32" in place. The OEM HX Large 10 7/8" case was used on the 430MEL engine. Over the years, people have swapped engines and trannys for many reasons. Hopefully, this helps.
Last edited by YellowRose : 05-30-2013 at 01:35 PM.
Reason: Additional Information