RPO ZR2

ZR2 Option Package
Overview
Manufacturer	Chevrolet/GMC (General Motors)
Model years	1994–2005, 2017–present
Body and chassis
Class	Compact Pickup Truck / SUV

Regular Production Option ZR2 is a special off-road/suspension package offered by General Motors on their mid-size pickup trucks and SUVs.
It debuted in 1994 on the Chevrolet S-10 and the GMC Sonoma pickup trucks. The Sonoma ZR2 was known as ZR2 High-Rider. In 1996 it was expanded to the two-door Chevrolet Blazer and later offered on the Chevrolet Tracker. The ZR2 package was gradually phased out with the S-Series pickup and SUV lines. However, it has made a comeback as an option on the 2017 Chevrolet Colorado.

Chevrolet Colorado ZR2
Overview
Model years	2017–present

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• Standard 3.6L DI DOHC V6 with 308 horsepower and 275 lb-ft of torque
• Optional 2.8L Duramax Turbo-Diesel engine with 186 horsepower and 369 lb-ft of torque
• Front and rear wheel flares
• 2" front and rear lift
• 3.5" wider stance
• 31" Goodyear Wrangler Duratrac off-road tires
• Exclusive ZR2 17 x 8-inch aluminum alloy wheels
• Modified rear axle with a 3.42 ratio
• Front and rear electronic locking differentials
• Multimatic™ shocks (DSSV)
• Tubular rocker protection
• Modified front and rear bumpers for better off-road obstacle clearance
• Skid plates
• Aggressive grille and hood combo unique to ZR2
• Off-Road Mode Technology - Seamlessly pick between Desert, Mud or Mountains
• Optional full-size bed-mounted spare tire carrier

S-Series ZR2
Overview
Model years	1994–2005

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• Ladder-type Frame with modified mounting points
• 100mm wider track (3.9 inches wider than regular S-10)
• Increased ground clearance (Approx 3" over Regular S-Series 4x4)
• Enhanced front (7.25" ring gear) and rear (8.5" ring gear) axles w/ 3.73:1 rear-axle ratio
• Larger wheel and axle bearings
• 31 x 10.50" BFG A/T Tires (Pickup), 31 x 10.50" BFG Longtrails (Blazer)
• 46mm gas pressurized Bilstein Monotube shocks
• Rear track bar (Pickup), Rear anti-sway bar (Blazer)
• Skid plates
• Fender flares

Chevrolet Tracker ZR2
Overview
Model years	2001-2004

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• Front and rear wheel flares
• P215/75R-15 all-season tires
• Exclusive ZR2 alloy wheels
• Standard power windows and mirrors
• Front skid plate

• 1994 - ZR2 package is introduced with the Regular Cab second-generation S-Series Pickups
• 1995 - ZR2 package expanded to Extended Cab S-Series Pickups
• 1996 - ZR2 package extended to two-door Blazer models. Third door was offered on extended cab models.
• 1998 - Disc brakes are now standard on the front and rear wheels. Interior updated along with front grille and headlights.
• 1999 - GM replaces the aluminum skid plates with composite skid plates. Side mirrors are updated. (much stronger)
  • Last model year the ZR2 option was offered on a regular-cab pickup.
• 2001 - ZR2 package extended to Chevrolet Tracker
• 2002 - ZR2 Trackers were upgraded to the LT trim level, offering optional leather upholstery
• 2003 - During the production year, ZR2s begin shipping with General Ameritrac tires instead of BF Goodrich tires.
  • GM discontinues S-Series Pickups. This is the last year that the ZR2 is available on a pickup.
  • A GMC Jimmy ZR2 surfaces in Canada. The Jimmy ZR2 was unavailable in the USA.
• 2004 - ZR2 available on Blazer and Tracker models. For the first time, the ZR2 is offered in 2WD.
  • GM discontinues Tracker including ZR2 model.
• 2005 - This is the last year for the ZR2 Blazer (USA) and Jimmy (Canada)
  • GM discontinues all remaining S-Series models. RPO ZR2 is phased out.
• 2017 - GM reintroduces the ZR2 option on the Chevrolet Colorado.
• 2022 - GM introduces the ZR2 option on the Chevrolet Silverado 1500.
• 2023 - GM introduces the ZR2 option on the Chevrolet Silverado 2500HD.

• ZR2USA.com: Enthusiast Forum
• Chevrolet Colorado ZR2: Official Site