Should I use loctite on any of these threads when doing maintenance?

 

I wouldn't. They are a ***** to get off sometimes as it is. Not something that is prone to vibration loosening.

 

thanks. How about the rear main seal bolts?

 

None to all.

 

My 97 FSM calls for Loctite 518 or equivalent on the rear main, as shown. The Google image below says 515. I dont know what year that is for, but ive been told there isnt much difference between 515 and 518. They are anaerobic. Some use RTV (Permatex 51813 anaerobic gasket maker) instead. Some dont use anything and have been fine. But IF you use anything, thats the stuff you want.

 

I wouldn't use locktite on the bolts. The Locktite referenced in the FSM is to seal the two halves of the seal together and I have never heard of anyone using that. Everyone I have seen uses RTV or some form of silicone to mate the seal the halves together. Locktite might make it a nightmare to remove if you have to do it again.

 

Loctite 515 or 518 is different from what we use on threads. There are threadlockers, sealers, and glues.

Here is a chart. Click the image to enlarge as it wont post here properly. https://anzordev.cdn.prismic.io/anzo...-chart_v10.jpg

 

On a somewhat related note, you may want to make sure the fill plug for the transfer case can be removed before you pull the drain plug. The plugs can seize in the case and be hard to remove.

I learned this the hard way. It is not a good feeling to have an empty TC with a frozen fill plug. There were drill bits, (not so) easy outs, heat, penetrates, leverage, strong men, and some creative methods of cussing involved in removal of said plug.

 

X2 on getting the fill plug out first.

 

x1 on the exact size socket or wrench..no to adjustable spanner..those suckers sure were tight, think they are pretty big over 1"

 

Mine are recessed, with a socket for a hex key. You definitely need the right tool, whatever that happens to be for your rig.

 

Np231, is a 30 mm

 

Think you mean 10 mm.

 

No I don't the transfer case, drain plug and fill plug on the np231 is a 30 mm. Had to buy the socket, just did a service last week.

 

Must be different then on my '00.
10 mm hex head for both drain and fill.