Skip to Product Info
    • Photo - Primary
    • Photo - Primary
    • Photo - Primary
    • Photo - Primary
    • Photo - Primary
    • Photo - lifestyle view
    • Photo - in package
    • Technical Drawing
    • User 1
    • Logo Image
    • Logo Image
    • Logo Image
    • Logo Image
    • Logo Image
    New!

    Yukon Gear Dura Grip Positraction For GM 12 Bolt Car w/ 30 Spline Axles / 3.08 To 3.90 Ratio

    Part Number: YDGGM12P-3-30-1
    Regular Price $929.77

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:

    Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches. For unmatched positraction performance, the Dura Grip is the ultimate choice. When your vehicle demands performance, durability and strength, choose Yukon Dura Grip.

    Installation Instructions
    • All units are backed by extensive product testing and state-of-the-art software design
    • Yukon Dura Grips feature 4320 chromoly spider gears for ultimate durability
    • Gears are cut to provide the strongest teeth possible in any terrain
    • Fully rebuildable design and proudly assembled in the USA
    • Fits 3.08/3.90 Gear Ratio [Also Fits Thick Gears]
    • Fits 3.08-3.90 gear ratio (Also fits thick gears)
    • Limited Slip Differential with composite clutches
    • Limited Slip Differential w/Composite Clutches
    • Fits 12P GM w/30 Spline Axles
    • Fits 12P GM differential
    • 30 spline axles

    This Part Fits:

    Year Make Model Submodel
    1964-1969 Buick Wildcat Base
    1965-1970 Buick Wildcat Custom
    1965 Buick Wildcat Deluxe
    1966 Buick Wildcat Gran Sport
    1964-1972 Chevrolet Bel Air Base
    1964-1972 Chevrolet Biscayne Base
    1967-1972 Chevrolet Camaro Base
    1967-1972 Chevrolet Camaro RS
    1967-1972 Chevrolet Camaro SS
    1967-1972 Chevrolet Camaro Z28
    1966-1970 Chevrolet Caprice Base
    1964-1968 Chevrolet Chevelle 300
    1965-1969 Chevrolet Chevelle 300 Deluxe
    1970-1972 Chevrolet Chevelle Base
    1967-1972 Chevrolet Chevelle Concours
    1969-1972 Chevrolet Chevelle Concours Estate
    1973 Chevrolet Chevelle Deluxe
    1969-1972 Chevrolet Chevelle Greenbrier
    1971-1972 Chevrolet Chevelle Heavy Chevy
    1973 Chevrolet Chevelle Laguna
    1973 Chevrolet Chevelle Laguna Estate
    1964-1973 Chevrolet Chevelle Malibu
    1973 Chevrolet Chevelle Malibu Estate
    1964-1965 Chevrolet Chevelle Malibu Super Sport
    1968-1972 Chevrolet Chevelle Nomad
    1968 Chevrolet Chevelle Nomad Custom
    1971-1973 Chevrolet Chevelle SS
    1967-1970 Chevrolet Chevelle SS 396
    1970 Chevrolet Chevelle SS 454
    1966 Chevrolet Chevelle Super Sport 396
    1964-1967 Chevrolet Chevy II Base
    1964-1968 Chevrolet Chevy II Nova
    1964-1967 Chevrolet Chevy II Nova SS
    1965-1972 Chevrolet El Camino Base
    1968-1972 Chevrolet El Camino Custom
    1968-1972 Chevrolet El Camino SS
    1964-1972 Chevrolet Impala Base
    1964-1967 Chevrolet Impala SS
    1970-1972 Chevrolet Monte Carlo Base
    1969-1972 Chevrolet Nova Base
    1969 Pontiac Firebird 350
    1969 Pontiac Firebird 350 HO
    1969 Pontiac Firebird 400
    1969-1972 Pontiac Firebird Base
    1970-1972 Pontiac Firebird Esprit
    1970-1972 Pontiac Firebird Formula
    1969 Pontiac Firebird Sprint
    1969-1972 Pontiac Firebird Trans Am
    1970-1972 Pontiac GTO Base
    1970-1971 Pontiac GTO The Judge
    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed