---
product_id: 103487166
title: "MPI 1\" to 4\" Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select 65-73 Mustang, 66-70 Falcon/Mercury 65-69 Comet & Cyclone - MADE IN USA"
brand: "mcbay performance"
price: "R$2263"
currency: BRL
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.br/products/103487166-mpi-1-to-4-adjustable-3-position-rear-leaf-spring
store_origin: BR
region: Brazil
---

# Adjustable 1" to 4" lift range 3-position heavy gauge steel plates Proudly made in USA MPI 1" to 4" Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select 65-73 Mustang, 66-70 Falcon/Mercury 65-69 Comet & Cyclone - MADE IN USA

**Brand:** mcbay performance
**Price:** R$2263
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Elevate your classic muscle with precision and pride!

## Quick Answers

- **What is this?** MPI 1" to 4" Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select 65-73 Mustang, 66-70 Falcon/Mercury 65-69 Comet & Cyclone - MADE IN USA by mcbay performance
- **How much does it cost?** R$2263 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/103487166-mpi-1-to-4-adjustable-3-position-rear-leaf-spring)

## Best For

- mcbay performance enthusiasts

## Why This Product

- Trusted mcbay performance brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy gauge alloy steel plates paired with zinc plating ensure durability and corrosion resistance season after season.
- • **Precision Lift Control:** Customize your ride height with a versatile 1" to 4" adjustable range for that perfect stance.
- • **Effortless Installation:** Includes stainless steel sleeves, OE-style bushings, and all hardware for a smooth, hassle-free upgrade.
- • **Tailored Fit for Classics:** Specifically engineered for iconic 65-73 Mustangs, Falcons, Mercurys, and more—preserve authenticity while enhancing performance.
- • **Complete Kit, Zero Guesswork:** Everything you need in one box—shackle plates, rubber bushings, sleeves, bolts, lock nuts, and clear instructions.

## Overview

The MPI Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit offers a robust, customizable lift solution from 1" to 4" for select classic Mustangs, Falcons, and Mercurys. Crafted from heavy gauge alloy steel with zinc plating and featuring OE-style bushings and stainless steel sleeves, this USA-made kit ensures durability, authenticity, and easy installation with all necessary hardware included.

## Description

NOTE: FOR 1/2" SHACKLE BOLTS ONLY. MUSTANGS CAN HAVE 9/16" BOLTS SO CHECK BEFORE ORDERING. 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) 1/2" Stainless Steel Sleeves, (4) Grade 5 Bolts with Lock Nuts and Instructions. Made in USA!

## Features

- NOTE: FOR 1/2" SHACKLE BOLTS ONLY. MUSTANGS CAN HAVE 9/16" BOLTS SO CHECK BEFORE ORDERING.
- ADUSTABLE 3-Position Heavy Gauge Steel Plates
- EASY to Install - STAINLESS Steel Sleeves
- OE Style Bushings - MADE IN USA!
- 1966-1970 Falcon (All Except Wagon), 1965-1973 Mustang
- MERCURY: 1964-1969 Comet (All Except Wagon), 1969-1973 Cougar, 1968-1970 Montego (Wagon ONLY)
- KIT INCLUDES: (4) shackle plates, (8) Rubber Bushings, (4) 1/2" Stainless Steel Sleeves, (4) Grade 5 Bolts with Lock Nuts and Instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | McBay Performance |
| Auto Part Position | Rear |
| Material | Alloy Steel |
| Included Components | Shackle Plates, Bushings, Sleeves, Hardware & Instructions |
| Maximum Lifting Height | 4 Inches |
| Manufacturer | McBay Performance, Inc. |
| UPC | 747989912817 |
| Item Weight | 7 pounds |
| Product Dimensions | 10 x 2 x 5 inches |
| Country of Origin | USA |
| Item model number | SK-5007 |
| Is Discontinued By Manufacturer | No |
| Exterior | Zinc Plated |
| Manufacturer Part Number | SK-5007 |

## Product Details

- **Brand:** McBay Performance
- **Auto Part Position:** Rear
- **Material:** Alloy Steel
- **Included Components:** Shackle Plates, Bushings, Sleeves, Hardware & Instructions
- **Maximum Lifting Height:** 4 Inches

## Images

![MPI 1" to 4" Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select 65-73 Mustang, 66-70 Falcon/Mercury 65-69 Comet & Cyclone - MADE IN USA - Image 1](https://m.media-amazon.com/images/I/71US4Jpo6nL.jpg)

## Questions & Answers

**Q: Will these work on golf carts?**
A: As long as the wholes are the same and the widths are the same I don’t see why not

**Q: will these work 67 mustang drivers side 1 inch lower can i just use it on the drivers side or have t change both thanks**
A: If one side of the car sits 1” lower - you should probably be looking to replace 1 or both rear leaf springs to make it right because one is worn out. You could use 1 or both of these to get more height out of the back of the car but if you have stock everything and the inch difference that spring is probably done. I went from an 8.8” rear to a 9” rear and put in new springs - the axle size/spring perch position has my car sitting low by about 2” so these will correct that issue but everything else is new/good.

**Q: Will this provide a significant change in ride height that will prevent my tires from scraping the fenders?**
A: Yes it will. It will lift the rear to allow room for larger tires.

**Q: How many shackles are included in this purchase?**
A: There are 4 plates in the kit. Enough to lift both sides on the rear of the vehicle.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality
*by T***R on November 10, 2024*

These were engineered as perfect as you can get. Absolute pleasure to install , I set the car on jackstands and used a floor jack under the rear end. Total install time was less than an hour . The new stance of the car is great . I used the very bottom hole on the shackles and raised the car up to the ride height I wanted . Rear is now at 28” from ground to fender

### ⭐⭐⭐⭐⭐ WORTH THE MONEY
*by A***R on February 15, 2021*

VERY WELL BUILT AND WORKING WELL SO FAR. EASY INSTALL.

### ⭐⭐⭐⭐⭐ Good choice
*by B***. on April 16, 2025*

Perfect fit.

## Frequently Bought Together

- MPI 1" to 4" Adjustable 3-Position Rear Leaf Spring Shackle Lift Kit/Set Compatible with Select 65-73 Mustang, 66-70 Falcon/Mercury 65-69 Comet & Cyclone - MADE IN USA
- Mr. Gasket 1290 Shock Extension

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-16*