m5od rubber plug replacement

Reply Subscribe

Thread Tools

Search this Thread

Oct 5, 2006 | 12:40 AM

gottashiftgears

Thread Starter

Junior User

Joined: Aug 2005

Posts: 90

Likes: 0

m5od rubber plug replacement

hello everyone,
i have a 95 f150 2wd with a m5od transmission. while i have the transmission out for clutch replacement, i decided to fix the 3 leaky rubber plugs on the back of the shift rails. i went to go buy "freeze plugs" but i found out that 5/8" are too small and 11/16" are too large. what size of plug works for that application? or, if there is no size that works well, do u think that using some rtv silicone sealant around the original rubber plugs would work? i just hate my good truck leaking from anything, and figure that rightn ow is the best time to take care of it, while the tranny is on the ground instead of in the truck.

thanks,
Lee

Oct 5, 2006 | 02:14 AM

Torque1st

Posting Legend

Joined: Sep 2001

Posts: 30,255

Likes: 37

Try a 16MM plug which is between those two sizes. My transmission shop had the plugs in stock but I have no idea what size they used.

Oct 6, 2006 | 04:51 PM

F150xlt

Posting Guru

Joined: Jan 2002

Posts: 1,346

Likes: 8

From: Baltimore

Here are two part numbers that should work.

Dana 219-3052
Dorman 555-108

I rebuilt my M5R2 and in the kit were 3 Dorman 555-108 expansion plugs.

Click on this URL http://www.dormanproducts.com

Search on Dorman part number 555-108.
They have a picture and specs. on the plug size.
It does say it's a nominal 5/8, 15.90 mm outside diameter.

If you can't find them locally, http://www.rockauto.com sells them but you have to buy a certain quantity and the shipping will cost more than the plugs.

Last edited by F150xlt; Oct 6, 2006 at 04:54 PM.