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Ecklers AutoMotive
Username Post: Rear end ratio (gear ratio)
TR56210 
Poster
Posts: 63

Reg: 10-28-18
02-08-19 08:45 AM - Post#2759385    
    In response to widall2

3.55 should be the stock gear ratio with power glide.

My opinion, engine longevity, is more about over maintenance than in RPM. Have a compression test done to assess overall health. Then check and change oil, cap, rotor, plugs etc per schedule and you are doing everything right. You could temporarily install a tachometer, wire to coil, power and ground, to confirm rpm. If it is the increased rpm when under load, then that’s more a limitation of the transmission not having an overdrive.

Can’t tell from your post if your concern is increasing mpg, highway performance or the power glide being a power glide.
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