Inliners International Forums General Discussion Drive Train 3spd overdrive

M20 63-65 1) 2.56 2) 1.91 3) 1.48 4)1.00
M20 66-70 1! 2.52 2) 1.88 3) 1.46 4)1.00
M20 71-74 SAME____________________________
M21 63-74 1) 2.20 2)1.64 3)1.28 40 1.00
M21 SAME___________________________
M22 65-72 SAME__________________________

M20 63-70 input spline 10 Output spline 27
M20 71-74 input spline 26 output spline 32
M21 63-70 " " 10 " " 27
M21 71-74 " " 26 " " 32
M22 65-70 " " 10 " " 27
M22 71-72* " " 26 " " 32
*some 1970 Chevlles may have had 26 spline inputs/32 spline outputs

Also some had the speedometer housing on the Driver side & some on the Passenger side