HERE IS A ORIGINAL GM MUNCIE 4 SPEED GEAR CLUSTER M20 WIDE RATIO FOR THE 63 64 65 MUNCIE 4 SPEED WITH THE SMALL 7/8 PIN AND A GEAR COUNT OF 29-22-19-17. THIS BOX IS ROUGH BUT THE GEAR IS PERFECT VERY HARD TO FIND ORIGINAL GM CLUSTERS WITH THE EARLY 7/8 PIN.