The Chevrolet K5 Blazer is a full-size sport-utility vehicle that was built by General Motors. Being GM's smallest full-size SUV, the K5 Blazer is part of the C/K truck series. Introduced to the Chevrolet line for the 1969 model year, the K5 Blazer was replaced for 1995 by the Chevrolet Tahoe. In 1970, GMC introduced its own model of the truck, called the Jimmy, which was discontinued in 1991 and replaced by the Yukon. The "Jimmy" name was chosen to reflect how GM may sound in a similar manner to how Jeep was thought to be a pronunciation of GP in the competing market.[citation needed] Both were short-wheelbase trucks and available with either rear- or four-wheel drive. Despite all Chevrolet versions from 1969 to 1988 having the "K5" badge, GM never internally referred to the model as the K5 Blazer/K5 Jimmy. Officially, the vehicles have always been referred to as the Blazer/Jimmy, without the K5 prefix. After the release of the S-Series Blazer/Jimmy in 1983, the models were officially renamed "Chevrolet Full-Size Blazer" and "GMC K-Jimmy" , though they are often unofficially still addressed as "K5" to avoid confusion.