Where to buy new diff

Hello. My rear diff pinion bearing is whinning. Eventually sometime in the future i need to replace it, but i think itd be smarter and more cost effective to but a whole new rear diff. Does anyone know where i can actually buy a new rear diff? I would rather get a new one other then a used one, but i guess used is fine. 2001 tundra 4x4 4.7l v8

 

Try this,
https://www.uneedapart.com/

 

https://eastcoastgearsupply.com/c-1065069-assembled-3rds-clamshells-99-06-tundra.html

 

Your best bet is to buy a new or rebuilt unit or have yours rebuilt. Buying a used unit could put you right back in the same predicament fairly quick.

 

It is so much cheaper to replace a bearing and keep your diff.

Also it is VERY WISE to make sure you know which bearing is bad. Very common for shade tree's AND shops to misdiagnose a diff when the issue is actually a rear wheel/axle bearing.

Mind if I ask how you diagnosed the rear pinion bearing? What are your symptoms?

 

Here's another of the various cost options available to you.
Here's what Toyota charges. Toyota parts warranty is 1 year.

2WD
https://www.discountpartsmonster.com/oem-parts/toyota-carrier-assembly-4111034221?c=Zz11bml2ZXJzYWxzLWFuZC1yZWFyLWF4bGUmcz1yZWFyLWF4bGUmbD0yNSZuPUFzc2VtYmxpZXMgUGFnZSZhPXRveW90YSZvPXR1bmRyYSZ5PTIwMDEmdD1saW1pdGVkJmU9NC03bC12OC1nYXM=

4WD
https://www.discountpartsmonster.com/oem-parts/toyota-carrier-assembly-4111035741?c=Zz11bml2ZXJzYWxzLWFuZC1yZWFyLWF4bGUmcz1yZWFyLWF4bGUmbD0yNiZuPUFzc2VtYmxpZXMgUGFnZSZhPXRveW90YSZvPXR1bmRyYSZ5PTIwMDEmdD1saW1pdGVkJmU9NC03bC12OC1nYXM=

 

@noahrexion . Thank you for the reply man! Yes my trustworthy (to me) mechanic said it was my pinion bearing in my diff. My symptoms were a medium to high pitched humming noise, only under light throttle, at certain speeds. Very annoying problem. And it goes away completely when i let go of the throttle or push into it more. He said the insides of the bearings coating start to just wear out which makes the noise, he also said its possibly for it to go another 100k+ miles as hes seen them go that long while making noise before. He basically told me not to worry about it and to start saving lol

 

@02goes Was thinking about it. How the hell do i put a new diff in? Would i need to buy a whole new axle? Cause i mean theres no way to just take the whole diff out. Thanks

 

Having a rebuilt clamshell diff from East Coast Gears (https://eastcoastgearsupply.com/i-788575-tacoma-8-4-non-eld-t100-tundra-3rd.html), Toyota dealership or a local shop that knows rear-end rebuild is an easy job for you to reinstall. There's no measuring anything! Just torque the bolts when putting everything back together. However it might be cheaper to leave the trk at a local rear end rebuild shop than to have a rebuild sent to you. For more involved mechanical jobs one should use a Toyota repair manual for reference (https://www.summitracing.com/parts/bsk-10423/make/toyota/year/2000/model/tundra). Can't go wrong with it as that book is the final word of getting it done right. A good investment if your keeping the trk and plan to do just about everything yourself.

Back out the axles, remove the driveshaft and then remove the diff clamshell. And that's it, no more unbolting anything. Install the rebuilt clamshell, install the axles and driveshaft. If I'm wrong someone should help you by stating what they know.

These should give you a good idea of how simple it is to remove the diff.
https://www.youtube.com/watch?v=EgNmy7vZqPY
https://www.youtube.com/watch?v=USqs3EcM4_U

Here are some links from the pro's here that know what their doing and passed along the knowledge, but remember the links are for rebuilding the diff yourself and not acquiring a rebuilt unit for install.

https://eastcoastgearsupply.com/i-788575-tacoma-8-4-non-eld-t100-tundra-3rd.html

http://www.gearinstalls.com/Kazumatyson.htm

http://www.proactivate.com/tundra/lsd.html

 

@Pucks18. Why did you start this thread when you posted a similar thread about this several days ago?