When rebuilding an automatic transmission, it’s easy to focus on the big-ticket components—clutches, steels, seals, and solenoids. But overlooking smaller wear items like transmission bushings and transmission bearings can create major problems down the road.
These parts play a critical role in supporting rotating assemblies, maintaining alignment, and reducing friction throughout the transmission. If they’re worn, damaged, or out of spec, even the best rebuild can fail prematurely.
At Auto Matic Kings, we’ve spent over 20 years supplying transmission parts you can count on, helping shops and installers source everything from full soft part kits to rebuilt and used hard parts. And if there’s one thing we know, it’s this: bushings and bearings matter more than most people think.
Transmission bushings are designed to support rotating shafts and drums while minimizing friction between moving components. They help maintain proper alignment and control fluid pressure by limiting internal leakage.
In an automatic transmission, bushings are commonly found in:
Bushings take a beating every time the vehicle shifts, accelerates, or operates under load. Over time, that wear adds up.
Think of them like the unsung heroes of the transmission world—quietly doing their job until they don’t.
Transmission bearings perform a similar function but are often used where rolling movement is required instead of sliding contact. Bearings reduce rotational friction and help carry load across high-speed moving parts.
Common types of automatic transmission bearings include:
These bearings are essential for smooth operation, especially in planetary gear systems and clutch assemblies.
Without properly functioning bearings, metal-on-metal contact increases, temperatures rise, and hard parts wear out much faster.
That’s when rebuilds get expensive.
Bushings wear gradually, which means symptoms can start small before turning into bigger issues.
Look for:
If you’re already inside the transmission during a rebuild, replacing worn bushings is usually the smart move.
It’s far cheaper than tearing the unit back down later.
Worn transmission bearings often make themselves known through noise or vibration.
Common warning signs include:
Any of these issues can indicate bearing failure—or that failure isn’t far behind.
When one bearing goes, the surrounding hard parts usually aren’t far behind either.
Short answer: yes—especially if there’s visible wear.
Most professional rebuilders inspect all transmission bushings and automatic transmission bearings during teardown. Even if they haven’t failed completely, wear tolerances can affect performance.
A complete rebuild isn’t just about replacing what’s broken. It’s about restoring reliability.
That means checking:
Skipping these steps is like rebuilding an engine and ignoring the crank bearings. Technically possible. Strategically questionable.
Not all bushings and bearings are created equal.
At Auto Matic Kings, we supply:✔ Full lines of soft parts
✔ New, rebuilt, and used hard parts
✔ Precision New Hampton converters
✔ R&R service on hard parts
Serving shops and installers throughout the High Desert, we specialize in sourcing hard-to-find components across all makes and models with quick turnaround times.
Whether you need transmission bushings, transmission bearings, or complete rebuild solutions, we help you get the right parts the first time.
Learn when to replace transmission bushings and bearings, the warning signs to watch for, and how worn components can impact automatic transmission performance and reliability.
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