It will mainly be a cruiser around town and I want to be able to light them up when I want to. I am trying to decide what gear to put in the rear end. I had the engine done last spring and has about 375-400 HP. Would opting for A/C on a 360HP have required the 3. I am doing a body off frame total restoration on my 73 El Camino. 1968-1969 1970-1972 1973-1977 1978-1981 1982-1987 Decoding Links. The 3.73 ratio was standard with the 360HP engine and the 3.31 optional. Call our Rear-End Parts experts for LIVE help. ![]() GM 8.2' Differential parts are in stock and ready to ship today at West Coast Differentials. To have an image removed from this website, please contact us at:. Is it possible that 3.31 could be a required option with 360HP engine when A/C was ordered. Images presented for reference and educational purposes only. So it is odd that some GM publications would list it with A/C the A/C didn't matter, but I guess that must explain where Colvin got it.Įdit: I do have another thought. 1968-1969 1970-1972 1973-1977 1978-1981 1982-1987 Decoding Links. Unless a car had optional positraction and/or metallic brakes there is no other 3.31 code other than CW. The other 3.31 codes are for positraction, metallic brakes, and positraction with metallic brakes. Body styles included coupes, sedans, convertibles, and station wagons. The first chart is for the Chevelles and the second chart is for the El Caminos.Ĭoncerning the description of CW with powerglide or A/C there is no other code for just a plain 3.31 ratio. The 'Super Sport' versions were produced through the 1973 model year, and Lagunas from 1973 through 1976.fter a four-year absence, the El Camino was reintroduced as part of the new Chevelle lineup in 1964. 4.10:1 Ratio, 27-spline, Standard Rotation, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Olds, Pontiac, Set. ![]() Filter by Availability Filter Results 1979 CHEVROLET EL CAMINO. Sorry about the quality I have copies made years ago on old style copiers. 1979 CHEVROLET EL CAMINO Differential & Rear-End Components. I scanned my information on the Chevelle and El Camino Power Teams that shows the standard rear ratios.
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