I updated my signature and save it. When I post, the old signate still shows.

Done a test the subsection above and still doesn't take effect.

Here is the new sign:

"2003 Chevy Silverado 4x4 1500 RCSB Stepside, 4L60E, LQ9 427ci, cnc L92 heads, PG's Custom Cam, L92 intake, 90 TB, K&N CAI, PS LT Headers, PS ORY Pipe, 3" Catback with 3" Flowmaster.

2008 6.2L Yukon Denali, Bone Stock. "

 

Logged out then in to check things. Now it is in effect.

 

Signature updates are immediate. I can only think that it was a cache issue in your browser looking at old posts.