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Old 02-26-2023, 02:20 PM   #9
HOTFUN
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Join Date: Jan 2001
Location: Lincoln, Nebraska
Posts: 2,154
Re: Transfer case info

Back when these new process 203 chain drive came out and versus the 205 gear system GM was boasting their quietness and effortless shifting with the full time system. Didnt take long to figure the fuel mileage difference and the additional wear on full time turning components to have everyone putting lockouts on their full time GM trucks.
Trucks were getting more and more car like in the squarebody design years. Streamlined cabs no more windshield gutters to cut wind noise and power window /lock options and full interior lining options by the 1977 models.
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