# Eaton Detroit Truetrac Diff 28 Spline 1.20in Shaft Dia 3.25 & Up Ratio Rr 8in (Req LM102949/LM02910) The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle. - Optimized Torque Bias Ratios Deliver Max Acceleration And Handling - No Special Lubrication Or Friction Modifiers Needed - Helical Gear Limited Slip Differential - Durable; Smooth; Quiet Operation - Works In Forward And Reverse - Ideal For Most Vehicles - Automatic Engagement This Part Fits: Year Make Model Submodel 1963 Ford 300 Base 1963-1968 Ford Anglia Base 1964 Ford Anglia Super 1963-1965 Ford Capri Base 1964 Ford Capri GT 1963-1964 Ford Consul Base 1963-1970 Ford Cortina Base 1964 Ford Cortina GT 1966 Ford Cortina Lotus 1963-1971 Ford Country Sedan Base 1963-1971 Ford Country Squire Base 1964-1971 Ford Custom Base 1964-1971 Ford Custom 500 Base 1962-1970 Ford Fairlane 500 1966-1967 Ford Fairlane 500XL 1962-1969 Ford Fairlane Base 1978 Ford Fairmont Base 1978 Ford Fairmont Futura 1963-1970 Ford Falcon Base 1963-1970 Ford Falcon Futura 1963-1965 Ford Falcon Futura Sprint 1963-1967 Ford Galaxie Base 1963-1971 Ford Galaxie 500 Base 1963-1964 Ford Galaxie 500 Sunliner 1963-1964 Ford Galaxie 500 Victoria 1963-1970 Ford Galaxie 500 XL 1972-1976 Ford Gran Torino Base 1973-1976 Ford Gran Torino Brougham 1974-1975 Ford Gran Torino Elite 1972-1975 Ford Gran Torino Sport 1972-1976 Ford Gran Torino Squire 1975-1978 Ford Granada Base 1978 Ford Granada ESS 1975-1978 Ford Granada Ghia 1964-1965,1968 Ford GT40 Base 1966-1969 Ford GT40 MK III 1965-1978 Ford LTD Base 1970-1976 Ford LTD Brougham 1975-1978 Ford LTD Country Squire 1975-1978 Ford LTD Landau 1970-1977 Ford Maverick Base 1975-1977 Ford Maverick Grabber 1964-1973 Ford Mustang Base 1969-1971 Ford Mustang Boss 302 1971-1972 Ford Mustang Boss 351 1969-1970 Ford Mustang Boss 429 1970-1973 Ford Mustang Grande 1970-1973 Ford Mustang Mach 1 1965-1970 Ford Mustang Shelby GT-350 1966 Ford Mustang Shelby GT-350H 1967-1970 Ford Mustang Shelby GT-500 1968 Ford Mustang Shelby GT-500KR 1971-1980 Ford Pinto Base 1976-1980 Ford Pinto Pony 1976-1980 Ford Pinto Squire 1963-1971 Ford Ranch Wagon Base 1970 Ford Ranch Wagon Police Cruiser 1967-1979 Ford Ranchero 500 1967 Ford Ranchero 500 XL 1964-1971 Ford Ranchero Base 1966 Ford Ranchero Custom 1968-1979 Ford Ranchero GT 1970-1979 Ford Ranchero Squire 1963-1964 Ford Sprint Base 1963-1965 Ford Station Bus Base 1963-1971 Ford Thunderbird Base 1971 Ford Torino 500 1968-1971 Ford Torino Base 1970-1971 Ford Torino Brougham 1969-1971 Ford Torino Cobra 1968-1971 Ford Torino GT 1969-1971 Ford Torino Squire 1970-1971 Ford Torino Super Cobra Jet 1963 Ford Zephyr MK III 1963-1964 Ford Zodiac MK III 1963-1971 Lincoln Continental Base 1968-1971 Lincoln Mark III Base 1967 Mercury Brougham Base 1964-1967 Mercury Caliente Base 1966-1967,1969-1977 Mercury Capri Base 1963-1971 Mercury Colony Park Base 1964-1965 Mercury Comet 202 1964-1965 Mercury Comet 404 1962-1969,1971-1977 Mercury Comet Base 1962-1963 Mercury Comet Custom 1962-1963 Mercury Comet S-22 1963-1968 Mercury Commuter Base 1967-1971 Mercury Cougar Base 1969-1970 Mercury Cougar Boss 302 1969-1970 Mercury Cougar Boss 429 1969-1970 Mercury Cougar Cobra Jet 1967-1971 Mercury Cougar XR-7 1963 Mercury Country Cruiser Base 1964-1971 Mercury Cyclone Base 1969 Mercury Cyclone CJ 1970-1971 Mercury Cyclone GT 1969-1971 Mercury Cyclone Spoiler 1963-1966,1969-1970 Mercury Marauder Base 1969-1970 Mercury Marauder X-100 1967-1971 Mercury Marquis Base 1969-1971 Mercury Marquis Brougham 1963 Mercury Meteor Base 1963 Mercury Meteor Custom 1963 Mercury Meteor S-33 1964-1968 Mercury Montclair Base 1968-1971 Mercury Montego Base 1968-1971 Mercury Montego MX 1970-1971 Mercury Montego MX Brougham 1970-1971 Mercury Montego Villager 1963-1971 Mercury Monterey Base 1963,1969-1971 Mercury Monterey Custom 1963,1966-1967 Mercury Monterey S-55 1964-1968 Mercury Park Lane Base 1963-1967 Mercury Villager Base 1966-1967 Mercury Voyager Base ## Details - **Price:** 1147.66 CAD - **Vendor:** Eaton - **Type:** Differentials ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1147.66 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Photo - Unmounted --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/eaton-detroit-truetrac-diff-28-spline-1-20in-shaft-dia-3-25-up-ratio-rr-8in-req-lm102949-lm02910) > Updated: 2026-06-27