Rear Control Arm

Our sealed Monoball Rear Trailing Arm Bushings (RTAB) are the best solution for completely eliminating deflection and unwanted toe changes on the rear of the E36, E46, and Z4. While rubber and urethane bushings flex during load, the toe can change widely giving you nervous and unpredictable handling. These RTABs have a solid aluminum housing with a high-quality sealed OE bearing. These bushings were developed from years of competition use in various racing and HPDE events. There is simply no better RTAB unless your racing class rules prohibit the use of mono or spherical bearings.

The rear trailing arm bushings take a lot of abuse from acclerating, braking and cornering. The stock rubber bushings are just not up to the task of keeping rear wheel alignment in spec for very long, especially if you have upgraded to stickier tires and a better suspension. The pliable rubber flexes and twists which slows down reaction time and leaves you with a car that feels nervous and 'tail happy'. Urethane helps to control the alignment but issues with fitment, maintenance, and longevity keep us from recommending urethane on anything but a street car. We also offer a Delrin RTAB for cars that must conform to certain racing class rules. These sealed spherical bearings are the best at controlling rear toe alignment.

Our aluminum RTABs are very well made - high grade aluminum alloy and steel CNC'd out of a billet by an ISO 9001 certified manufacturer, each component is either hardcoated or nickel plated. While multiple manufacturers offer two piece designs, our research showed that a one piece bushing is a better design featuring a sealed bearing to keep contaminants out extending the life of the bearing.

Features:

Key Benefits:

• Rear Trailing Arm Monoball eliminates unwanted deflection, maintaining alignment settings and minimizing wheel hop.
• Allows full rear trailing arm articulation for low friction movement and eliminates binding found in rubber and poly bushings.
• Completely streetable: utilizes an OES Lemforder brand sealed, greased ball joint for an extremely long service life with no increase to NVH.

Design Features:

• Housing: Billet CNC 6061-T6 aluminum, type II anodized for exceptional durability and corrosion resistance
• Bearing: OE Mercedes/lemforder 2043520027 Sealed ball joint
• Bearing inserts: CNC machined 303 stainless steel.
• Rebuildable

Clickhere for installation instructions.

This item fits the following BMWs:
1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

When an E9X is lowered beyond the limits of just lowering springs, the rear wheels toe-in excessively. This excessive rear toe leads to premature wear, that many people attribute to an increase in negative camber. It has become a common belief that an extremely low vehicle will wear the tires wrong as a matter of consequence. It has become standard practice to go as low as you can and proceed to replace your tires every five to ten thousand miles. Whats more is that when the vehicle reaches a certain ride height, the factory arms become maxed out and there is no way to compensate and dial in the proper toe. You're left with an improperly aligned vehicle that is in effect worse off than it was with the stock suspension installed.

This is not only uneconomical but improper and unsafe. ECS Tuning is proud to offer a solution for this problem in the form of Rogue Engineering E9X adjustable rear toe arms. These arms allow for greater toe adjustment on vehicles that have been lowered with a coilover suspension. With the toe set properly the tires can contact the road properly this maximizes grip and minimizes wear. 

Features:

• 100% machined and anodized, 6061-T6 lightweight aluminum arms
• High-strength, 3-piece, rod end (with carbon fiber reinforced, PTFE race) offers longer life for street compared to standard rod ends
• SEALS-IT Rod end seals keep dirt, water, and other contaminants out
• Rod ends feature grease fittings, to allow for rod end serviceability.
• Lighter than stock!  (Stock is 875g, RE arms are 640g)
• Extremely easy installation and adjustment (your alignment shop will LOVE you!)

Dinan's high-performance Rear Suspension Link Kit adds precision and predictability at the limit.

The stock rear toe link setup is built with rubber bushings and a curved forged alloy rod which can easily flex. During hard acceleration and braking, this flex allows the rear wheels to have excessive toe change which ultimately causes the car to be unstable. Dinan stops the flex by replacing the rubber bushings with Teflon-lined machined steel rod ends that significantly reduce pliability while also swapping out the OEM curved bar with a stouter billet aluminum arm, thus adding stability. Like the rear toe links, the stock front trailing links also incorporate rubber bushings. Flex in these bushings allows the rear wheels to behave sloppily under heavy loads. Dinan adds precision by replacing these links with billet aluminum arms and precision ball joints just like the ones found in the Dinan front monoball kit.

Have confidence in your F90 M5 when pushing the envelope without worry of erratic suspension play or sacrificing ride quality and comfort. Whether it be at the drag strip doing quarter mile runs or simply getting the jump off the line at a stop light the end result with Dinan's Rear Suspension Link Kit is a more stable and planted driving experience when pushing the car to its limits.

Benefits of the Dinan Rear Suspension Link Kit for the BMW F90 M5:

Replaces the stock rear toe link & rubber bushings with a precision machined black-anodized aluminum arm and racing-quality rod ends.
Rod-ends are Teflon-lined for quiet operation.
Rubber boots protect rod ends from environmental damage for long-lasting performance and removes the need for constant cleaning.
Replaces the stock forward lower trailing link & rubber bushings with a precision machined black-anodized aluminum arm and precision ball joints.
Bearings are nylon-lined for quiet operation.
Dramatically improves vehicle stability during hard cornering.
Improves response by eliminating the deflection of the rubber bushings.

Updated design!  Now shipping!

When an E9X is lowered beyond the limits of just lowering springs, the rear wheels toe-in excessively. This excessive rear toe leads to premature wear, that many people attribute to an increase in negative camber. It has become a common belief that an extremely low vehicle will wear the tires wrong as a matter of consequence. It has become standard practice to go as low as you can and proceed to replace your tires every five to ten thousand miles. Whats more is that when the vehicle reaches a certain ride height, the factory arms become maxed out and there is no way to compensate and dial in the proper toe. You're left with an improperly aligned vehicle that is in effect worse off than it was with the stock suspension installed.

This is not only uneconomical but improper and unsafe. ECS Tuning is proud to offer a solution for this problem in the form of Rogue Engineering E9X adjustable rear toe arms. These arms allow for greater toe adjustment on vehicles that have been lowered with a coilover suspension. With the toe set properly the tires can contact the road properly this maximizes grip and minimizes wear. 

Features:

100% machined and anodized, 6061-T6 lightweight aluminum arms (and collars).

Stainless hardware and spacers are perfect for the tough Northeast climate!

New!  Easy adjustment with 22mm open ended wrench and 5mm allen key!  It only requires 15 ft. lbs. on the clamp to secure the clamp!

New!  Included lock-out kit, replaces factory eccentric hardware.

Updated 3-piece rod ends features 4130 chromoly steel bodies, heat-treated, alloy steel races, and Teflon liners

Extremely easy installation and adjustment (your alignment shop will LOVE you!)

Rogue Engineering E82/E9X Adjustable Rear Camber Link Set V2.0 is the ultimate upgrade for BMW enthusiasts seeking enhanced handling, improved tire wear, and precise suspension tuning. This high-performance solution is engineered to fit BMW E82 1-Series and E9X 3-Series models, offering superior adjustability and durability over OEM components. Ideal for street and track use, this camber link set is crafted from premium materials to ensure strength and long-lasting performance.

Key Features:

These replace the wishbone and guide arm links in the factory suspension which have rubber bushings and limited adjustment. Enhanced suspension adjustability for optimized alignment Improves handling and reduces uneven tire wear Compatible with BMW E82 1-Series and E9X 3-Series models Constructed from high-strength materials for durability and reliability Perfect for both street performance and track applications Turner Motorsport proudly offers the Rogue Engineering E82/E9X Adjustable Rear Camber Link Set V2.0, providing BMW drivers with unmatched performance and precision.