Description
Comparison points and tradeoffs
When comparing MPI 1′ to 4′ Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select Mopar B-Body, C-Body, M-Body – MADE IN USA with other Shackles & Parts options, use this source-backed detail as the primary discriminator: It’s zinc oxide coating, stainless steel sleeves, rubber bushings and grade 5 bolts are designed to last.
Use this second fact to evaluate the tradeoff: Category: Replacement Parts / Shocks, Struts & Suspension / Chassis / Shackles & Parts. A third point to compare across alternatives is: Product identity: MPI 1′ to 4′ Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select Mopar B-Body, C-Body, M-Body – MADE IN USA.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
This 3 position rear shackle kit is a perfect, economical way to lift the rear of your car for a great looking stance. The kit is adjustable for approximately 1″ through 4″ lift and is made from heavy gauge steel. It’s zinc oxide coating, stainless steel sleeves, rubber bushings and grade 5 bolts are designed to last. A very easy install, most can have them installed within an hour. Rear shock extenders may be needed. Kit includes: (4) shackle plates, (8) Rubber Bushings, (4) 9/16″ Stainless Steel Sleeves, (4) Grade 5 Bolts with Lock Nuts and Instructions. Made in USA!
Source product highlights
About this item
- ADUSTABLE 3-Position Heavy Gauge Steel Plates
- EASY to Install – STAINLESS Steel Sleeves
- OE Style Bushings – MADE IN USA!
- CHRYS: 1955-1969 300, 1975-1983 Cordoba, 1983-1989 Fifth Avenue, 1960-1968 Imperial, 1977-1981 LeBaron, 1953-1973 New Yorker, 1963-1969 Newport
- DODGE: 1963-1964 330, 1963-1964 440, 1962 880, 1964-1970 A100 Pickup & Van, 1967-1970 A108 Van, 1976-1980 Aspen, 1971-1980 B100 Van, 1973 CB300, 1966-1978 Charger, 1965-1974 Coronet, 1960-1962 Dart, 1977-1989 Diplomat, 1955-1959 Lancer, 1980-1983 Mirada, 1965-1973 Monoco, 1960-1973 Polara, 1968-1971 Super Bee
- PLYMOUTH: 1962-1970 Belvedere, 1965-1967 Belvedere II, 1960-1963 Fleet Special, 1962-1969 Fury, 1968-1969 Fury I, 1965, 1969 Fury II, 1965-1969 Fury III, 1980-1989 Gran Fury, 1967-1971 GTX, 1974-1975 PB100 Van, 1968-1974 Roadrunner, 1965-1973 Satellite, 1962-1964 Savoy, 1970 Superbird, 1976-1980 Volare
- KIT INCLUDES: (4) shackle plates, (8) Rubber Bushings, (4) 9/16″ Stainless Steel Sleeves, (4) Grade 5 Bolts with Lock Nuts and Instructions.




Alan –
I liked that it came as a set, complete to do both rear leaf springs. This is not cheap junk. It is heavy duty all the way, and looks great on my 73 Roadrunner!! Gave the car attitude and the street stance I wanted!!I had called McBay Performance to ask a few questions, and they were awesome on the phone, answering all my questions very patiently. I am not being paid for this review.
Carl E. –
Got these for my sagging 1978 dodge Aspen wagon. Air shocks could not keep The pressure. This puts the weight onto the springs, and the air shocks are keeping the PSI.
Customer –
Better alternative than air shocks. Gave my 67 Coronet the take I was looking for. Easy to install.
Mijo –
perfect fit, fast shipping
Josh Cox –
Perfect, exactly what I needed