Rear Differential Plug Torque Specs
Thread Starter
Racer
Joined: Jul 2016
Posts: 313
Likes: 107
From: N.E. Ohio
Rear Differential Plug Torque Specs
I have a 2017 Z51 with 4800 miles. After reading about low fluid levels in some diffs from the factory I decided to check mine. It was at least 1/2" low. I will just change it after the fluid I ordered comes in instead of adding to it.
My question is what torque setting for the fill and drain plugs. As a couple of other posters have stated my plugs were barely more than finger tight. They both have some type of plastic washer and hand drawn lines on them that lined up with the housing. Has there been a change from the 20 lb/ft spec I have seen in the How-To on this forum or were mine way to loose? Thanks
My question is what torque setting for the fill and drain plugs. As a couple of other posters have stated my plugs were barely more than finger tight. They both have some type of plastic washer and hand drawn lines on them that lined up with the housing. Has there been a change from the 20 lb/ft spec I have seen in the How-To on this forum or were mine way to loose? Thanks
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
I just tightened mine as tight as I could with a 6 inch wrench.
Been almost 3 years and no sign of any leaks.
The nylon washer locks the plug without being overly tight.
When I removed the plugs from the factory, they actually did not seem very tight, but they did not fall out.
Been almost 3 years and no sign of any leaks.
The nylon washer locks the plug without being overly tight.
When I removed the plugs from the factory, they actually did not seem very tight, but they did not fall out.
Thread Starter
Racer
Joined: Jul 2016
Posts: 313
Likes: 107
From: N.E. Ohio
For those who are also looking for an answer, I just finished changing out the rear differential with new factory fluid. 20 lb/ft on the torque wrench does not damage the nylon washers.
