BMW Suspension Bushings & Mounts

Replacing your struts and shocks? Don't forget the bushings! The rubber mounts for the shocks will go bad over time, especially if you drive hard or the roads are particularly rough. The shock mounts locate the front struts and rear shocks to the car - providing a quiet and vibration-free buffer between the road and the cabin. Shock mounts and bushings can wear out just like any other rubber part on the car. This leads to more noise and harshness reaching the chassis and may complicate your new suspension install. When installing new shocks, that is the perfect time to also replace the mounts. There is no additional time to install them, no special tools required, and doesn't take any extra time! If you re-use the original mounts you have the risk of them failing before your next shock replacement, doubling your labor costs. 

This item fits the following BMWs: 
2006-2012 E9X BMW All xi models - 325xi 328xi 330xi 335xi

The perfect upgrade for any E46, this finned differential cover increases cooling to the rear differential to prevent over heating and possible damage. This is a complete kit including fluid and drain plugs.

Includes the following

• Aluminum finned differential cover
• Drain & fill plug with sealing o-ring
• 2 Quarts of Redline 75w90

This package allows you to build your own rear bushing package to cover the parts you want to replace. As these cars age, they require a number of suspension bushings to be replaced. Bushing replacement not only keeps the car in its top form, it also makes the car safer. Depending on the work, it may be logical to replace all of the bushings in the rear suspension (there are 19 total). This is especially true if you are pulling the subframe out to do the floor reinforcement or if you're doing a diff install. Turner Motorsport is a big believer in using rubber bushings for street cars (with the exception of solid subframe mounts, see further below). Urethanes, Delrin, or aluminum are generally good for reducing compliance and limiting deflection - attributes that don't really work well on roads filled with potholes, railroad crossings, cracks, and expansion joints. The rubber bushings maintain the factory ride/handling traits that won the E46 praise all over the world. Every bushing will need maintenance or replacement at some point and rubber has proven to last the longest and need less maintenance than anything else, even urethane. And unless competitive driving is your goal, the harder materials are only a gimmick.

Any major overhaul of the rear suspension should include new subframe mounts. The worn rubber mounts contribute to rear subframe-floor failure when the deflection in the mount is transferred to the chassis. Rubber mounts are only OK for street cars that don't see aggressive driving, autocross, or track use. For any enthusiastic driving, we strongly recommend our solid aluminum subframe mounts even on the street. They have zero deflection and will not contribute to rear floor failures. And if you leave rubber in the rest of the suspension your ride comfort will not suffer.

Individual Item Descriptions:

• Trailing Arm Bushings and Limiters (33322228153 and TSU9990001) - our OEM rubber replacement trailing arm bushings (RTABs) are a perfect fit and help maintain rear toe alignment. The Limiters prevent premature bushing wear.
• Rear Inner Control Arm Bushings (upper 33321092247 and lower 33326770824) - new stock inner rubber bushings for the upper spring arm and the lower camber arm. These do not wear out very quickly but should be replaced as a 'While you're in there...' job.
• Rear Outer Control Arm Bushings (upper and lower) (33326775551) - new stock outer ball joints for the upper spring arm and the lower camber arm. These are the standard ball joint design and last a very long time. Check for play with a pry bar and replace as needed.
• Rear Shock Mounts - Choose from several types of RSM upgrades. If your mounts have not been replaced in the last 40,000 miles, now is the perfect time. Skip this option if you recently replaced mounts or already have an upgraded mount.
• Differential mounts (33176770788 and 33176751808) - Now is a great time to replace the rubber-isolated mounts. This is another low-wear mount but it can be changed easily, and is a low cost item. Solid diff mounts are streetable with only a minimal increase in NVH.
• Rear subframe mounts (33316770783, 33316770784, 33316770781 x 2) - The heart of the rear suspension, the subframe (or carrier) mounts located the entire rear suspension to the car. There are four mounts in total and bolt up into the rear floor. Worn subframe mounts are one of the leading contributors to rear floor-subframe failure. As the mounts flex, so does the sheetmetal of the chassis, which will fatigue the sheetmetal and crack the spot welds. Therefore, replacement of the subframe mounts is critical and a must when doing the subframe reinforcement or repair. Solid aluminum mounts are streetable with no increase in NVH.

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi

If you're replacing the struts and shocks on your 325Xi or 330Xi you should also pick up this mount package. As these cars have gotten older, their rubber mounts have deteroriated. If your shocks have gone bad then chances are very good that the mounts need replacing too. The rubber bushings are designed to isolate the chassis from bumps, potholes, and poor roads and give a harsh-free ride and precise handling. But they won't last forever. These mounts and pads are the perfect complement to your new shocks to help restore your car's handling and performance.

This mount package contains all of the commonly replaced rubber mounts and pads for the front and rear shocks on a 1999-2006 E46 325Xi and 330Xi AWD. These are easily installed - there's no additional labor, time, or effort and special tools are not required.

The basic E46 Xi mount package includes:

• Front strut mounts (also known as the guide support)
• Front strut reinforcement plates (to prevent cracking and deforming of the front strut towers)
• Front and rear self-locking mounting nuts
• Rear Lifetime Warranty 'Repair Shop' shock mounts
• Rear shock mount reinforcements (to prevent cracking of shock towers)
• Rear shock mount gaskets

The spring pads, dust boots, and bump stops can be added from the menu below. Note that front bump stops and dust boots are generally not required if you're using Bilstein struts, Bilstein coil overs, H&R coil overs, or KW coil overs. Those struts come with their own front bump stops and boots and may include rear stops and boots as well.

This item fits the following BMWs:
1999-2006 E46 BMW 325xi 330xi

Installing a new set of shocks and struts in your BMW? Turner has your back with this complete "cup kit", which contains all the necessary components for ensuring a lasting installation.

See "kit contents" for a detailed list of all components included with this purchase.