[67Fbird]

100% ready to go M21. I rebuilt about 8 yrs ago when 2nd gear felt unhappy. Replace 1-2 slider all brass and bearings and seals. Tranny was reistalled in my Bird driven 0-15 miles for test run (MY kinda of test run) before being put on the shelf in favor of a th2004r. My current build WILL be a clutch. I would prefer a M20 for the wider ratio as my Bird was NOT overly friendly as a driver with the 400 -M21 combo. A 3800 lb f-body and a 2.20:1 first gear makes for rather short rearend gears or limited fun. Now building a 455 , I would rather open up the ratio add some taller gears so the car will work better. Again this M21 is 100% ready to bolt in...looking for the same or similar. 1 1/8-26 input, th400 output