Welcome to my blog. It was initially created in 2012 to post music I recorded. I posted a few quick experiments in 2013 and never posted music again, though I did record more. Since I already owned lots of boats and outboard motors, I decided to post about boats, ATVs and snowmobiles. I posted a few snowmobile photos and then nothing until 2025. Since I planned to sell my cottage and move south, I started selling all my boats and motors and switched to Radio Control vehicles in early 2024. In February 2025 I started collecting 1:64 scale diecast vehicles and decided to catalogue them on this blog...may you find freedom in my toys!

Sunday, August 10, 2025

M2 Machines 1:64: 1975 GMC Jimmy Sierra Grande 15

M2 Machines World of Outlaws Hauler Set (R77)

The third generation of the C/K series is a range of trucks that was manufactured by General Motors from the 1973 to 1991 model years. Serving as the replacement for the "Action Line" C/K trucks, GM designated the generation under "Rounded Line" moniker. Again offered as a two-door pickup truck and chassis cab, the Rounded Line trucks marked the introduction of a four-door cab configuration.

Marketed under the Chevrolet and GMC brands, the Rounded Line C/K chassis also served as the basis of GM full-size SUVs, including the Chevrolet/GMC Suburban wagon and the off-road oriented Chevrolet K5 Blazer/GMC Jimmy. The generation also shared body commonality with GM medium-duty commercial trucks.

In early 1987, GM introduced the 1988 fourth-generation C/K to replace the Rounded Line generation, with the company beginning a multi-year transition between the two generations. To eliminate model overlap, the Rounded Line C/K was renamed the R/V series, which remained as a basis for full-size SUVs and heavier-duty pickup trucks. After an 18-year production run (exceeded only in longevity by the Dodge D/W-series/Ram pickup and the Jeep Gladiator/Pickup), the Rounded Line generation was retired after the 1991 model year.

From 1972 to 1991, General Motors produced the Rounded Line C/K (later R/V) series in multiple facilities across the United States and Canada. In South America, the model line was produced in Argentina and Brazil, ending in 1997.




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