Price Match Guarantee 
Free Shipping
Only 2 left in stock
Write a Review
Write a Review
UMI Performance
UMI Performance 64-72 GM A-Body Rear Coilover Conversion Brackets - 4069
UMI Performance 64-72 GM A-Body Rear Coilover Conversion Brackets - 4069
This wheel on real customer builds
See this part on video
Made by our team · tap a video to play it
📧 Get Fitment Help
Verify parts fit & get product recommendations
UMI Performance
SKU:
UMI4069
|
- UPC:
- 4069
- Availability:
- Regularly stocked product
$349.99
Other UMI Performance kits for this car
Fits these vehicles
Fitment not listed for this part yet — call or text 813-535-5801 and we will confirm it for your car.
Part details
- Part number
- UMI4069
- Manufacturer part number
- 4069
- UPC
- 4069
- Brand
- UMI Performance
- Prop 65
- ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
- Box size:
- 5.00 × 4.00 × 40.00 (in)
Finance it — pay over time
Bad credit or no credit? No problem. Lease-to-own with Snap Finance: no credit needed, approvals up to $5,000, as low as /week. Get started
Low monthly payments
Affirm, Klarna or PayPal Pay Later: see your exact plan at checkout. Checking won’t affect your credit score.
Bad credit or no credit? No problem. Lease-to-own with Snap Finance: no credit needed, approvals up to $5,000, as low as /week. Get started
- Affirm
- Klarna
- PayPal Pay Later
- Snap Finance
📧 Get Fitment Help
Verify parts fit & get product recommendations
Complete the job
Read before you buy
-
-
Out of stock
-
Only 1 left in stock
-
Out of stock
The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper mount, specifically designed to accommodate a 2-1/2” racing coilover with a double-shear configuration. The lower brackets, engineered through Finite Element Analysis (FEA), are reinforced and are designed to be bolted directly onto the existing Quick Performance rear lower control arm mounts. These brackets also feature an adjustment mechanism for trailing arm height, facilitating the tuning of the instant center location using the 5 available positions. This product is manufactured and tested in Philipsburg, Pennsylvania, utilizing materials sourced from the United States.We advise that the brackets be installed initially and that measurements be taken from center to center at ride height to guarantee the precise identification of shock part numbers. Regarding compatibility, this kit is designed for direct installation with a Quick Performance rear.
- Clearance Item:
- N
- LTL:
- N
- MPN:
- 4069
- Proposition 65:
- Y
- Special Order:
- N
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review
UMI Performance
UMI Performance 64-72 GM A-Body Rear Coilover Conversion Brackets - 4069
UMI Performance 64-72 GM A-Body Rear Coilover Conversion Brackets - 4069 FAQ
Ride height is set on the threaded body or the lower mount, and the damping (how firm the shock feels) with the adjuster when the kit has one. Some kits also let you set spring preload and camber at the top mount. The Part details above list what this exact kit adjusts.
Yes. Changing ride height changes camber and toe, so have the car aligned once the height is set and the suspension has settled after a short drive.
Set all four corners before the alignment, keep the drop inside the maker's range, and re-check the height after the first drive because the springs settle. Going lower than the maker recommends costs ride quality and tire life.
The car settles a little over the first few drives. After that, re-check the ride height, the lock rings on the collars and the top-mount hardware, then get the alignment done.
Yes. Most coilovers are built for daily use when set to the maker's recommended height and a softer damping setting. Track-focused series ride firmer.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: coilovers
Before you start
- Read the maker's guide and note the recommended ride-height range for your car.
- Book an alignment for after the install; the car needs one.
Do
- Set all four corners to the same drop before the alignment and re-check the height after the first drive.
- Keep the threads clean and lightly lubricated so the collars still turn next season.
Don't
- Don't go lower than the maker's range; it costs ride quality and tire life.
- Don't skip the alignment.