Ribbed housing 14Bolt 10.5” drain plug ?

[tarussell]

Question for y’all - I took notice on a pic from the classified section of a later model ribbed 14Bolt and it had a pipe drain plug.

I’m just curious if that was factory or not - it’s easy enough to drill one but it caught my attention and wondered if GM started using them at some point ?

Can anyone with any GMT400/800 and up ride confirm this ?

Thanks, Tom

 

[Fastereddie]

That is factory on the newer aam axles.

 

[Fastereddie]

I’ve only used it once, but I wanna say it isn’t even npt, it’s straight thread with an o-ring seal.

 

[Wes Harden]

My 01 burb has, factory

 

[Chickntrk]

All of the vans at work with 14b have them, I think it started with the ribbed housings

 

[bigjimmy82]

I have a ‘95 g30 van ribbed housing under mine and no drain plug

 

[Fastereddie]

I have a ‘95 g30 van ribbed housing under mine and no drain plug

Thats interesting

 

[nvrenuf]

It’s definitely a change in the housings, the early ribbed housings in the later squares didn’t have drain plugs.

 

[imiceman44]

Question for y’all - I took notice on a pic from the classified section of a later model ribbed 14Bolt and it had a pipe drain plug.

I’m just curious if that was factory or not - it’s easy enough to drill one but it caught my attention and wondered if GM started using them at some point ?

Can anyone with any GMT400/800 and up ride confirm this ?

Thanks, Tom

View attachment 520116

I will check my 98 tomorrow.
I am sure my 2003 should have it,it's disc brakes.

 

[83ChevyK5Blazer]

Iirc, it is in the aam version of the 14 bolt.

 

[Tnsejed]

It can be found in the regular 10.5 14 bolt ribbed housing and the 11.5 aam.

There's also a couple different ribbed housing 10.5BFF versions aside from the drain plug no drain plug thing. You can find 4" tube versions of the late model 10.5 under upfitter, cab and chassis, or van applications too.

 

[shady]

My uncle has a 2000 Cab n chassis gmt400 body style with the 14b and that oil drain plug.