How do I tell if my 00' Silverado has Posi or not?

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Aug 19, 2004 | 07:00 PM

#11

ktmrider

TECH Fanatic

Joined: Apr 2003

Posts: 1,107

Likes: 2

From: Albuquerque, NM

If the code is confusing the easiest way is to lift the rear axle off the ground ( safely as always ). Release the ebrake and turn one wheel. If wheels turn in the same direction, you have posi. If one turns in the opposite direction, peg leg ( old saying for regular differential ).
Thanks 6gear for the code breakdown!

Aug 20, 2004 | 07:18 AM

#12

6gear

Launching!

Joined: Jun 2003

Posts: 200

Likes: 0

From: North Central Arkansas, Cave City

Quote:

Originally Posted by ktmrider

You are right on a posi but I think the G80 Gov lock units will act like a regular differential untill you turn one tire fast enough to activate the governor

Aug 20, 2004 | 08:19 AM

#13

zippy

TECH Veteran

Joined: Sep 2003

Posts: 4,534

Likes: 3

From: Las Vegas, NV

Quote:

Originally Posted by digital

Hey thanks for the input fellas...

Another question I have is regarding the tune I'm about to get...I want to find out about eliminating Traction Control to light up 20'' wheels with a Whipple blower... what is a good/safe amount of TC to remove without hurting anything like the tranny, etc....

I guess this is a two-part question, also what shift-firmness should I be aiming for?

if your truck has the traction control option all you have to do is push the button to turn it off. as for shift firmness, i wouldn't do it with programming. i'd install a good shift kit with billet servo's.