Note: Please see available upgrades options for your ball joints and shock mounts below.
AMT Motorsport is proud to introduce our Monoball Control Arm Bushing kit for all C5, C6 and C7 Corvettes. This kit replaces the stock rubber bushings in all 16 locations of your control arms with precision-machined aluminum housings, stainless steel ears, and the best spherical bearings in the business - the Radial RWT-10.
If you're searching for the elusive "go-kart" handling characteristics for your race car, spherical bearings are perhaps the first suspension upgrade you should consider. The factory rubber bushings are extremely gushy in order to reduce noise, vibration, and harshness from a street car. They also cost almost nothing to produce and to install. Factory rubber bushings are more than adequate for 99% of cars that live their lives on the street. However they "numb" the driver from feeling the track. The soft rubber dulls every movement of the suspension and turn of the steering wheel. The rubber deteriorates over time and on a serious track car will start to extrude itself from the control arms. This will destroy your alignment and your tires in a matter of minutes on track.
Spherical bearings eliminate all of the shortcomings of rubber on a track-focused vehicle. The car will feel razor sharp on the track as the car will react immediately to your driving inputs. The car no longer has to wait for the stock rubber to compress while changing direction. Tires last longer and perform better with proper alignment settings since the camber value does not change due to deflection of rubber bushings. The trade off for all the increased performance of spherical bearings is of course cost and harshness. You will feel every surface imperfection in the track, which means you will feel every pothole and frost heave on the street. Good shocks will smooth out some harshness on the street, but this is not a modification we recommend for a street-only car. Some people love having spherical bearings on their commuter car, but it's not something that we at AMT would enjoy.
The price of this kit includes all service of your control arms. This does not include any service or replacement of the ball joints that are pressed into your spindles.
All you need to do is remove your control arms and send them to us. We'll press out all your rotten old bushings. We measure every bore in your control arms and custom machine our bearing housings from 6061-T6 aluminum for a perfect fit. The ears are made from 7075-aluminum and the upper control arm trunions are made from hardened 17-4PH stainless steel. All of these parts are machined to within a .0005" tolerance to ensure that everything fits together perfectly and performs with rock solid precision. We then test fit every assembly in our in-house cradles and custom machined jigs. We guarantee that your control arms will fit on your car when you receive them back, and if they don't we'll make new parts and ship them right out to you. You will not need to get out the drill or dremel to make these parts work on your car. Price includes shipping back to your location. Turnaround time from the time we receive your control arms is about 2-3 weeks. Every piece of this kit is 100% Made in the USA.
We put together a video highlighting the whole manufacturing process of this kit. We're quite proud of the work that goes into these things so if you'd like to see how it's done please click here.
Guarantee - All machined parts are guaranteed for as long as you own the vehicle. Bearings are guaranteed for 5 years for the original owner.
Please do not anodize, coat, or paint your arms (for aesthetics) before sending them to us. While we are always careful, mistakes or a drop can happen. We are not responsible for correcting any blemishes in the aesthetics of your arms caused during handling (if you had them beautified before sending them to us).
The below options are available and are recommended. If you wish to purchase these options, please contact us by email or phone.
Replacement General Motors ball joints - $25 per joint
We recommend the replacement of these 4 ball joints during our process so your newly modified arms are working at their best and remove any diminished performance from old and worn ball joints. To be clear, these are the 4 ball joints that are pressed into the arms, *not* the (different) ball joints that are pressed into your spindles.
Shock Mount Bushings - Delrin Bushings - $135 per pair
If you're taking the time to tighten up your suspension with spherical bearings in the arms, we'd recommend replacing the pair of stock shock mount bushings in them as well. Our first option are delrin bushings that will be stiffer than stock to squeeze little more 'go kart' feel into your suspension. This is a good option for double duty street/track cars.
Shock Mount Bushings - Spherical Bearings - $315 per pair
The second option is to replace the pair of shock mounts with more spherical bearings. You probably already know (else you wouldn't be reading this) that the ball bearings will allow better geometry actuation and yet have the stiffest feel. We've had nothing but good comments from customers who have opted for these shock mounts. We only recommend this option for strictly track cars.
You have 14 days to inspect your shipment and contents. After that period, Eaton Motorsports is no longer responsible for missing items. You have 30 days to report any damaged or incorrect items, after that period Eaton Motorsports is no longer responsible for returns or exchanges. All stocking products are subject to a 30 Day return policy. The item(s), when approved for return, are subject to a base 15 percent restocking fee or the restocking fee of the part manufacturer; whichever is higher. Canceled orders may be subject to a 20% cancellation fee. Items marked "Special Order" cannot be cancelled. All product returns require a return authorization number before being shipped back to Eaton Motorsports or the manufacturer. An “RMA” number is obtained by emailing info@eatonmotorsports.com. Some products may require shipping back to the manufacturer for inspection before a return or exchange can take place. Some products may not be able to be returned. Products that have been modified or installed are not eligible for return. There are no returns for Special Order/Made to Order items and Electrical Components (including the COBB Accessport). Items returned after the 30 Day return period without an RMA will be refused.
Refunds take 30 days or less. Payments made by Credit Card or PayPal are returned back to the original account used during the transaction. Refunds are decided by the management and not by sales staff.
All products sold on the shopping cart are shipped by UPS, USPS, or FedEx. All packages include shipping insurance in case they are lost or damaged. USPS requires signature confirmation on all insured orders over $200.00. USPS shipping times are estimated and not guaranteed. UPS tracking numbers are automatically generated when a package ships and the number is sent to the email address you provided. If a package contents is damaged during shipping please notify the shipping driver and file a claim with the shipper. You have 14 days to inspect your shipment and contents. After that period of time, Eaton Motorsports is no longer responsible for missing items. You have 30 days to report any damaged or incorrect items, after that period of time Eaton Motorsports is no longer responsible for returns or exchanges. You can contact us by Email or call 833-367-7678 for assistance.
Some items require drop shipping to complete an order. These products are shipped from manufacturer or distributor warehouses across the country. In some cases, this may speed up delivery time. In other cases, it could add 1-3 days to the delivery time. These products may also ship with a provider that is different than the provider you have selected. If you have a question regarding an order please contact our sales desk at 833-367-7678.
Orders placed after 3PM EST may not be processed the same day. Order processing may take 24-48 hours. USPS orders placed after 10am EST will ship the following business day if the items are in stock.
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