i think everyone here might be missing the original question that was asked: did chrysler ever have a "dealer installed trim option package called muscle hustle?" i believe the comments are talking about TWO different chrysler programs.
1. chrysler got involved in "factory backed" NASCAR racing as far back as the 1950's. their racing programs were expanded extensively in the 1960's with the addition of factory sponsored drag racing teams. starting in the late 1950's, chrysler started promoting its "racing parts" through the "parts departments" of their auto dealerships. these "racing parts" often came in special promotional "packages" that were hung on the wall beside the parts counter. the "muscle hustle" reference made in this post referred to the muscle hustle "parts catalog" that has been referenced in the on-line links above. in the late 60's chrysler racing parts became known as "Direct Connection." mopar racing parts today are found in "Mopar Performance Catalogs" for various vehicles. so years ago, chrysler had parts catalogs called "muscle hustle." AND there were no doubt race parts in blister pack packages hanging on the wall beside the parts counters in the 1970's with "Muscle Hustle" parts printed on the package.
2. now to the second point - was there a dealer installed trim option package called "muscle hustle option package" installed on chrysler CARS in the 1970's? i suspect that there WAS NOT - at least not a "factory originated" marketing package. now there may very well have been "muscle hustle" DECALS at the 1970's parts counters which might have also been in the muscle hustle parts packages. during the hay-day of "muscle cars" when "after market" parts were initially growing in popularity, EVERY part that you bought for your car came with a decal - Hurst Shifters, Cherry Bomb mufflers, Highjacker Air Shocks, Milodon engine parts, Cragar Mags, American Mags, Torque Thrust Mags, STP oil treatment, Hooker Headers - i had decals from all these companies in my 1972 high school drag racing magazine collection. there were scores of other companies that gave you a free decal. so some mopar guy could easily have had a "mopar muscle hustle" decal on his 75 dodge dart or 78 plymouth "road runner."
but again, i have to say that i do not believe there was ever a mopar muscle hustle "trim" package put on a chrysler car in the 1970's that changed any aspect of that car over the stock production car. remember, the "California Mustang" which was only available in California had the original OEM tail lights replaced with "Shelby style" tail lights by the dealer as part of that "package." the "Twister" package on the 1975 Plymouth Duster was only a decal package. and the 1978 "so-called" "Road Runner" - was nothing but a Duster with "Road Runner" decals and a few other plastic parts.
sorry to be so long-winded... but i hope these distinctions help...
