1973–1991 C20/C30 (8 LUG) 4 inch Rear Lowering Leaf Spring Hanger and Shackle Kit
$272.29
Upgrade your truck’s stance with the 1973–1991 C20/C30 4-inch Rear Lowering Leaf Spring Hanger and Shackle Kit. Designed to offer a simple yet effective solution for a stylish and smooth ride, this leaf spring shackle kit is easy to install.
These 4-inch lowering shackles offer an easy way to lower your truck. By adding a leaf spring hanger and shackle, you’ll get a 4-inch drop that boosts your truck’s appearance and performance.
Made in the USA, this leaf spring shackle kit is durable and built to last. Get that perfect stance with minimal effort. Shocks are not included in this kit.
- 4″ drop for C20/C30 (8 LUG) trucks
- Easy installation with traditional hanger/shackle design
DJM recommended shock 1800
Description
Why Buy from DJM Suspension
American Craftsmanship
As a family-owned company, DJM Suspension brings over 50 years of expertise in designing and manufacturing high-quality, American-made suspension kits. We stand behind every product we create.
Proven Performance
Our products, including this C20 lowering kit, are designed to meet the highest standards, offering both reliability and performance. With DJM Suspension, you get a suspension that lasts and enhances your driving experience.
Customer Satisfaction Guaranteed
We pride ourselves on delivering great customer service. Our team is dedicated to helping you every step of the way, making sure you're satisfied with your purchase.
About DJM Suspension
DJM Suspension was born out of love for all things aftermarket automotive. As a family-owned and operated American-made manufacturer, we have been leading the lowering industry since the early 1970s. Our commitment to quality and customer satisfaction makes us the go-to brand for your suspension needs.
Frequently Asked Questions
Lower Your Ride with This Leaf Spring Shackle Kit
Take your truck to the next level with our 4-inch lowering shackles. They’re American-made and designed for a perfect fit. Get that custom look and performance with ease!
Additional information
| Weight | 20 lbs |
|---|
PART # HS1119-4
1973-1991 CHEVY C30 REAR HANGERS & SHACKLES
INSTALLATION INSTRUCTIONS
Rev. # 1-04
Please take the time to read these installation instructions and check the Hardware Parts List to be sure you have all the listed parts before beginning installation.
DJM parts should be installed by qualified mechanics. If you are not familiar with automotive repair, have the parts installed by someone with experience.
Please read the warranty information (blue page enclosed). Complete your Product Warranty Card and mail it to DJM Suspension.
Please take a few minutes to fill out your installation helper (back side of warranty). Accurate measurements BEFORE BEGINNING INSTALLATION will show any irregularities in your vehicle.
NEVER WORK UNDER TRUCK SUPPORTED BY A JACK ONLY!!! USE QUALITY JACK STANDS WHICH HAVE A RATING ADEQUATE FOR YOUR TRUCKS WEIGHT!!!
THIS KIT REQUIRES THE REMOVAL OF UPPER OVERLOAD SPRINGS AND STRIKER PADS, WHICH MAY REQUIRE ADDITIONAL LOAD CARRYING DEVICES TO RETAIN LOAD CAPACITY.
NEW REAR SHOCKS DJM PART #1800 ARE REQUIRED.
Caution: Leaf springs are under considerable tension. Good judgment should be used when removing shackle bolts. The rear spring may move causing a pinch point between the spring and rear shackle.
Hardware Parts List
|
2 — Spring Eye Hangers 2 — Shackles w/ Bushings (SH1012-2) 8 — 7/16" x 14 Nylock Nuts 8 — 7/16" x 14 x 1-1/4" Bolts 16 — 7/16" Flat Washers |
Installation Instructions
-
Working on one side at a time, remove the u-bolts holding the springs to the axle. To keep the spring pack together while removing the overload, use two large C-clamps placed close to the center bolt on the leaf spring and tighten. Remove the center bolt nut. Slowly loosen the C-clamps and remove the upper overload spring. Clamp springs back together. Install center bolts and tighten. Remove C-clamps.
-
The spring center bolt must be in the hole on the top of the axle. Check before tightening u-bolts. When the center bolt is in place, install u-bolts, bottom plate, and nuts. Tighten u-bolts.
-
Remove the two striker pad brackets attached to the frame.
-
Loosen and remove the two shackle bolts and remove the stock shackle. Test fit the shackle and check for interference on the bottom of the bed. On some trucks a square bed brace will be in the way of the shackle. Cut a notch in the brace wide enough for the bolts.
-
Remove the bolt holding the front of the leaf spring to the front spring hanger.
-
Remove the rivets holding the spring hanger to the frame. This can be done with an air chisel or by drilling out the rivets.
-
Mount your new DJM spring hanger in the original holes on the frame with the hardware provided. The gas tank may need to be moved to gain access to bolts on the driver side. Raise the axle so the front of the springs can be located in the new hanger. With factory bolts, attach the spring to the hanger and install nuts. Do not tighten nuts. (Some may find it easier to attach the spring to the hanger before bolting the hanger to the frame.) See Fig #1 for typical hanger installation.
Fig #1 — Typical hanger installation -
Apply some grease to the bushings and inside sleeves, then attach the new shackle on the frame mount and bolt in place with factory bolts (Fig #2). Shackle will install with bushings down and open side forward. The hole farthest away from the bushing will lower the truck more than the closer hole. Now raise the rear axle high enough to align the spring eye and shackle. Insert the remaining bolt and install nuts.
Fig #2 — Shackle installation -
Install rear wheels and torque lug nuts. Remove jack stand and floor jack. Check the height of the rear. You can change the height by moving the spring to the other hole in the shackle. When satisfied with the height, install new shocks. Tighten all bolts.
-
Take truck for a test drive. Record complete height on installation helper. Double check all hardware.
