OR trim- less obvious differences, rear axle strength, etc...

I've seen several posts regarding the obvious differences between the OR and other trims (mechanically) such as Crawl Control/MTS, suspension, locker, available manual trans. I've also seen one post that specifically called out the hydraulic brake booster instead of vacuum.

I searched and found zero that mentioned any benefits to the 8.75" rear over what I believe is a smaller rear in all other models (8.5"?). I have a Jeep TJ currently and getting the Dana 45 over the Dana 35c was a BIG deal strength wise. So here are my questions

1) Am I wrong and all models have the 8.75" rear so therefore this is irrelevant?
2) If only the OR has the 8.75" is there no strength difference? Does it not matter in any way besides fitting the e-locker? I'm just surprised it hasn't been a topic of discussion if there is any strength difference...
3) Are there any other mechanical differences like this which are not commonly discussed?

Thanks...

 

No one knows?

 

maybe the 4 cylinders have the smaller rear? Not sure.

 

The TRD Off-Road and all manual transmission trucks have a 8.75" rear differential.

The TRD Off-Roads all have lockers.

All other models have an 8" non-locking diff.

https://www.tacomaworld.com/threads/which-models-have-which-size-differential.388610/


The manuals have a 4.30 ratio and the automatics have a 3.909 ratio.

 

so the 4x4 sr5 does not have have 8.75 diff?

 

Nope. SR5 4x4 V6 has the 8".

 

https://www.tacomaworld.com/threads/which-models-have-which-size-differential.388610/

 

Thank you- very useful. For the record I did search and this did not come up- go figure.

Is there a difference in the axle shafts as well? I'm guessing so given the different weight bearing?

Are there any other random differences then besides the hydraulic brake booster?

 

Thanks for the info! I was thinking about just sticking with a 4x4 sr5 and use the money saved for mods but now the rear axle has me thinking.... I wonder if the 8" is strong enough for offroading?

 

I've only recently seen posts about that but haven't found anything confirming it's a hydraulic booster. I looked at it but it was hard to tell. I wasn't sure if the lines I saw were off the power steering pump or something else.