I have never seen a 4.8/5.3 GMT900 pickup with factory brakes, and I believe that the options for four-wheel discs were tied to the 14-bolt in much the same way that the 4.8 mandates the 4L60E and the 6.2 mandates the 6L80E.

 

I meant factory disc brakes, lol. At least none from the factory. I've heard of guys swapping Tahoe brakes and I'm sure it would be a cakewalk to put the VortecMax or 6.2 brakes on.

 

any speedo vids

 

There's a 2 on my YouTube, search mrdicklandy. I'll be hittin up the track this weekend and I'll take some vids with my gopro.

 

Nice truck

 

In for vids!

 

Rained out today but it's all sunshine for Sunday and Monday. I might be getting my hands on a second gopro. It'll be nice to get a few different angles!

 

Been missing out on this one. I have a 2011 4.8 silverado with the lysholm 3.8 pulley 9lbs so curious to see your results. So far my mustang dyno numbers are 417 whp 442 tq with 26" wheels lol.

 

12.4@110mph. Vids to come shortly.