Which cars does the Adjustable Rear Lower Control Arms for AE86 fit?

Cusco USA lists part number 116 470 B for the Toyota Corolla GT-S (AE86, 1983-1987). The Adjustable Rear Lower Control Arms for AE86 bolt on in place of the factory lower arms. Check the model against the Applications list before ordering.

Why does a lowered AE86 need adjustable rear arms?

Lowering the car changes the angle of the four-link arms, which moves the rear axle and changes the pinion angle. That can cause axle steer under power and driveline vibration. Adjustable arms let the axle be put back where it should be, so the rear behaves predictably when the car is pushed.

Should the upper and lower arms be replaced together?

For the best result, yes. The upper and lower arms together set the axle position and the pinion angle, and changing only one pair limits how far the geometry can be corrected. Cusco sells them separately, as 116 470 A for the upper arms and 116 470 B for the lower arms.

Is an alignment needed after fitting?

Yes. Any change of rear arm moves the axle position, and adjustable parts are only useful once they have been set on an alignment rig. Have a four-wheel alignment done straight after installation, and again after any change of ride height or arm length.

Is it suitable for daily driving?

Yes, for most enthusiasts. Pillowball joints pass more noise and vibration into the car than rubber bushings, and they should be checked for play at each service, especially on cars driven through winter road salt. Owners who want the quietest ride may prefer to stay within the factory adjustment range.

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Description

Cusco Adjustable Rear Lower Control Arms for AE86 Toyota Corolla GT-S

Cusco’s Adjustable Rear Lower Control Arms for AE86 Toyota Corolla GT-S replace the factory rear lower four-link control arms on the solid rear axle with adjustable arms that use rod ends at both ends. Each arm can be set from 10 mm shorter to 20 mm longer than the factory length, per Cusco, so axle position and pinion angle can be corrected after lowering. They suit an AE86 built for drift, grip or hill climb, where a lowered car needs its rear axle geometry put back in line.

Design and Performance

The AE86 locates its live rear axle with four trailing control arms and a lateral rod. Lowering the car changes the angle of those arms, which moves the axle and the pinion angle and can make the rear steer itself under power. The rubber bushings in the factory arms also let the axle shift under load. The Adjustable Rear Lower Control Arms for AE86 replace the rubber with rod ends and make the length adjustable, so the axle can be set where it belongs and held there.

Features

Rod ends at both ends of each arm
Length adjustable from minus 10 mm to plus 20 mm, per Cusco
Corrects axle position and pinion angle after lowering
Removes rubber bushing flex from the rear axle location
Bolt on in place of the factory lower arms

Specifications

Cusco part number: 116 470 B
Type: Rear lower control arms, four-link
Joints: Rod ends at both ends
Adjustment range: Minus 10 mm to plus 20 mm
Position: Rear axle, lower links
Fitment type: Bolt-on
Matching part: Cusco 116 470 A (upper arms)

Applications

Toyota Corolla GT-S: AE86 | 1983-1987 | 1.6L (4A-GE)

Notes

A four-wheel alignment is needed after installation; installation labor is not included
The matching rear upper control arms are sold separately as Cusco part 116 470 A

Frequently Asked Questions

Which cars does the Adjustable Rear Lower Control Arms for AE86 fit? Cusco USA lists part number 116 470 B for the Toyota Corolla GT-S (AE86, 1983-1987). The Adjustable Rear Lower Control Arms for AE86 bolt on in place of the factory lower arms. Check the model against the Applications list before ordering.
Why does a lowered AE86 need adjustable rear arms? Lowering the car changes the angle of the four-link arms, which moves the rear axle and changes the pinion angle. That can cause axle steer under power and driveline vibration. Adjustable arms let the axle be put back where it should be, so the rear behaves predictably when the car is pushed.
Should the upper and lower arms be replaced together? For the best result, yes. The upper and lower arms together set the axle position and the pinion angle, and changing only one pair limits how far the geometry can be corrected. Cusco sells them separately, as 116 470 A for the upper arms and 116 470 B for the lower arms.
Is an alignment needed after fitting? Yes. Any change of rear arm moves the axle position, and adjustable parts are only useful once they have been set on an alignment rig. Have a four-wheel alignment done straight after installation, and again after any change of ride height or arm length.
Is it suitable for daily driving? Yes, for most enthusiasts. Pillowball joints pass more noise and vibration into the car than rubber bushings, and they should be checked for play at each service, especially on cars driven through winter road salt. Owners who want the quietest ride may prefer to stay within the factory adjustment range.

About CUSCO

CUSCO is the brand of Carrosser Co., Ltd., founded in December 1977 and based in Takasaki, Gunma Prefecture, Japan. Carrosser designs and builds coilovers, limited-slip differentials, clutches, roll cages and chassis parts, sells its steel cages under the Safety 21 name, and competes in every All Japan Championship category from circuit racing to rally and gymkhana. CUSCO USA, a division of Carrosser, is based in Huntington Beach, California.

Additional Information

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Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Cusco Adjustable Rear Lower Control Arms for AE86 Toyota Corolla GT-S [116 470 B]

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Cusco Adjustable Rear Lower Control Arms for AE86 Toyota Corolla GT-S

Design and Performance

Features

Specifications

Applications

Notes

Frequently Asked Questions

About CUSCO

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