BlackBird620 Posted October 7, 2013 Report Share Posted October 7, 2013 What were the r&p ratios available in the 620s with the l20b and 4 speed Quote Link to comment
Z-train Posted October 7, 2013 Report Share Posted October 7, 2013 4.37s up to 78. 4.10s in 79. Quote Link to comment
BlackBird620 Posted October 8, 2013 Author Report Share Posted October 8, 2013 Thanks going to get a 720 3.8 Quote Link to comment
Radim Posted October 8, 2013 Report Share Posted October 8, 2013 Literally just finished throwing in a 3.89 off a 720 ST, replacing my old 4.38... Yeeesh what a difference! Quote Link to comment
datzenmike Posted October 8, 2013 Report Share Posted October 8, 2013 R&P? rack and pinion? All standards were 4.375 except '79 which was 4.11 Automatics were 4.625 through '74 with L16 or L18 motors. '75 and up all years were 4.375 Quote Link to comment
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