are all fill / drain plugs 13mm for front / rear diff, tranny, and transfer case?

[itsforandres]

as the title says, are all of the drain / filler plugs 13mm? interested specifically on front and rear differentials, transmission, and transfer case. 

i need to order the 13mm male socket, would like to understand if i need other sizes as well. 

i know most people use the 1/2” drive, but that translates to 12.76, and i’d just prefer to get the correct tool for the job. 

thanks, you gorgeous bastards. 

[joshuaho96]

No, when I did this I definitely recall some of the fill bolts being smaller. I need to go check again but I'm pretty sure some of the fill plugs are 10mm square because some Nissan engineer was giddy at the thought of making people buy more tools, pretty sure in your last thread the ones with the lower torque spec are smaller. Also as Sean Morris' blog mentions just give up now and prepare to drop the front driveshaft as a part of the process, don't make your life miserable trying to avoid it.

I recommend using the right size socket because those things are usually very, very stuck on there. Hope you have an impact wrench or something similar so you don't round the plug or damage something.

[Duncan]

They are all 13mm apart from the transfer case filler plug which is 11mm.

I also use a 13mm square drive rather than 1/2 inch. 13mm square is hard to find as single drivers though.

[itsforandres]

On 9/20/2021 at 6:56 PM, joshuaho96 said:

No, when I did this I definitely recall some of the fill bolts being smaller. I need to go check again but I'm pretty sure some of the fill plugs are 10mm square because some Nissan engineer was giddy at the thought of making people buy more tools, pretty sure in your last thread the ones with the lower torque spec are smaller. Also as Sean Morris' blog mentions just give up now and prepare to drop the front driveshaft as a part of the process, don't make your life miserable trying to avoid it.

I recommend using the right size socket because those things are usually very, very stuck on there. Hope you have an impact wrench or something similar so you don't round the plug or damage something.

can you supply a link to what you’re talking about? this is the first i hear of dropping the drive shaft. 

On 9/20/2021 at 8:29 PM, Duncan said:

They are all 13mm apart from the transfer case filler plug which is 11mm.

I also use a 13mm square drive rather than 1/2 inch. 13mm square is hard to find as single drivers though.

excellent! thanks, i will try and track these two sizes down.