Chrysler Corporation (Mopar) option code

D91  — Sure-Grip differential

D91 (Sure-Grip differential): a Chrysler Corporation (Mopar) factory option code recorded on 6 models across 1970–1974, with installs and price where a source states them.

6 models · 4 model years · 7 sources

Yellow 1970 Dodge Challenger T/A with black side stripe, T/A and 340 SIX PAK lettering, and fibreglass hood scoop, front three-quarter
1970 Dodge Challenger T/A in yellow with black strobe stripe, matte-black hood and 340 Six Pak callout Photo: Sicnag, CC BY 2.0, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1970 Dodge Challenger 8.25-in Sure-Grip rear axle (T/A) sales code Unknown Unknown
1970 Dodge Charger Sure-Grip differential sales code $42.35 5,079 Reported
1970 Plymouth Barracuda and 'Cuda Sure-Grip differential (standard in performance axle packages) sales code Unknown Unknown
1970 Plymouth Duster 340 and 360 Sure-Grip differential (required for 3.55 and 3.91 axles with 340) sales code Unknown Unknown
1971 Plymouth Duster 340 and 360 Sure-Grip differential sales code $41.70 Unknown
1971 Plymouth GTX, Belvedere and Satellite Sure-Grip differential order code $45.35 Unknown
1971 Plymouth Road Runner Sure-Grip differential order code $45.35 Unknown
1972 Plymouth Barracuda and 'Cuda Sure-Grip differential sales code Unknown Unknown
1972 Plymouth Duster 340 and 360 Sure-Grip differential (required for the 3.55 axle with 340) sales code Unknown Unknown
1972 Plymouth Road Runner Sure-Grip differential sales code Unknown Unknown
1974 Plymouth Duster 340 and 360 Sure-Grip differential sales code Unknown Unknown
1974 Plymouth Road Runner Sure-Grip differential sales code Unknown Unknown

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.