I can't find the part numbers for the fill and drain plug for the rear diff. I was able to find the numbers for the hex plugs but I would rather have the six points. I don't have a dealership near me so I'd like to buy them online if possible. Does anyone have the parts numbers? Also, I'm not sure if the crush washers come with the plugs so those numbers too if they come separately. The truck is 1986 Pickup 22RE 4WD. Thanks!

 

Take a look here. You may need to use the change vejicle link to fine tune in your rig.

 

Hex is 6 point. Do you mean you'd rather have the stock style with a bolt head rather than the low profile version that uses an allen key to tighten/loosen it?

Stock-
Drain 90341-18057
Fill 90341-18049
Gasket 12157-10010(For both)

 

I went with gold plug on the drains for both front and rear differentials. Fits great on rear drain, but front drain you need to use a thinner walled socket -- chromed set, not parkerized... Also note that gold plugs appear to be harder steel heads than do the factory originals.

Also note that drain and fill plugs appear to be dimensionally interchangeable, the only difference is that the fill plug does not have a magnet -- I'd say the gold plug is ~3x to 5x as strong as the factory magnet.

This is the one you need for front and rear differential and transfer case if you go that route -- note for transfer case, you'll need to use an adjustable crowsfoot wrench to set torque (no room for a socket, at least on my rig).

http://www.magneticdrainplug.com/Aut...lugs/AP05.html

AP-05 Magnetic Drain Plug
Stainless Steel
AP-05

 

P.S. For allen key, just use your transfer case drain part numbers -- it too is magnetized and based upon gold plugs dimensions and a quick glance at the factory original spares in my parts tray, all appear to have the same threading.

 

Thanks everybody for your responses. The plugs and washers came in the mail today and they fit great. This was the end to a three weekend battle I had with a seized and rounded-off rear diff fill plug thanks to those Jiffy-Lube hacks. I had to spend close to $80 bucks on tools and parts to fix their mistake but I finally got the job done.