the 1970 model, except that the 340 6-Bbl was gone, and the four-barrel carbureted 440 V8 engine was no longer on the options list, but could be had via special order and perhaps a dozen cars were built with it installed; otherwise, the 440-powered Barracudas had a six-barrel carburetor setup instead. In 1971 the big-block power options offered to the customer were: SAE Gross in the 383-2V SAE Gross in the 383-4V SAE Gross in the 440-6V SAE Gross in the 426-8V In 1970 and 1971 only, the shaker hood (option code N96), elastomeric (rubber) colored bumpers, and the Spicer-built Dana 60 rear axle were available. The shaker hood was available with 340, 383, 440 four-barrel, 440 six-barrel, and 426 Hemi engines. The elastomeric (rubber) colored bumpers were available either as a front-only option, option code A21, or as a front and rear combination, option code A22. The heavy-duty (and heavy) Dana 60, with a ring gear, was standard equipment with manual transmissions and 440 six-barrel and 426 Hemi engines, and was optional on those with the automatic transmission. 1972-1974 With a new grille and single headlights (very similar to the 1970 model) and four circular taillights for 1972, the Barracuda would remain basically unchanged through 1974, with new bodyside stripes, and minor changes to the bumpers to conform with federal impact standards being the only significant variations. Big block engines (383, 440, & 426 Hemi), heavy-duty suspensions and rear axles, and large/wide tires mounted on wheels were no longer offered. Additionally; the convertible model was dropped; though a few late build 1971 convertibles were built with 1972 grills and back end panels and provided to Paramount Studios for TV and movie work; being seen on Mannix, The Brady Bunch and other shows. Convenience and comfort items such as power seats, power windows, and upgraded interior (leather seats and plush carpeting) options were dropped, though heavy-duty air conditioning and a sunroof could still be ordered. For 1972 only, three engine choices were offered: a 225 six, the 318 (base engine for both 'Cuda and Barracuda), and a revised 340 detuned to meet emission standards. In addition, all three were tuned to run on low/no-lead gas and were power rated on the NET (installed) method. Three transmissions were offered: a 3-speed manual, the Torqueflite automatic, and the Hurst shifter equipped four-speed. For 1973 federally mandated safety bumpers were added front and