Originally Posted by 6bblgt
the 1969 Dart OPTION & ACCESSORY REPORT I have a copy of is for US shipped cars prior to 8/??/69 and accounts for 88.4% of the model year's DART GTS hardtop (LS23) production

cars not included would be cars shipped to CANADA or overseas & cars still sitting on assembly plant holding lots waiting to find a shipping date/dealer/customer/etc., this totals 728 units (a number of these cars were surely 440 Darts)

all 440 automatic Dart GTS cars started life as a 383 automatic GTS hardtop & included a 3.55:1 or 3.91:1 rear axle ratio with a mandatory (extra cost) sure-grip differential

per the above mentioned report, the maximum number of 440 GTS Darts possible would be 489 units - IF there were ZERO 383 automatic cars with a sure-grip differential and 3.55:1 or 3.91:1 rear gears

the actual number would be lower twocents 10% - 20% lower would be 391 to 440 units ??? shruggy



Is there a breakdown of gear ratios with 4 speeds ?

running up my post count some more .