Hi guys,

This has probably already been answered but I want to make sure I have the right PROM in the ECM to do a swap to speed density. Does anyone have a serial number of what it would be? I have DELCO AXXB 3063 and another number is 973089213600115. I'm not exactly sure what's what but before we take the car apart I wanted to make sure I had the right chip.
Any help would be great. Thank you!

 

Axxb is a speed density memcal gm p/n 16163062 . it is for a 305 lb9 tpi, MD8 A/Trans .
designed for QPE 215/60R16 Tires, QMT 235/55R16 Tires and contains vats enabled.

 

Thanks so much. Any ideas about the knock sensor? I called GM and they told me there were 2 for the LB9 so I'm confused now. Thanks again!

 

ACDELCO Part # 213-91
{#10456019}
SENSOR,KNOCK BUTTON TYPE TERM-1/4-18 THD; Iroc-Z
It is a 3.9k ohm sensor

 

If you need the vats disabled or any other reprograming send me a pm I can assist you with the swap