Which gearing would be best for me
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CF Beginner
Joined: May 2009
Posts: 23
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From: South Texas
It's about 1600$ to 2000$ out the door for new gears, if you have it done by a shop.
Be sure the shop reprograms your PCM with the new gear ratio, this way your speedometer will still be accurate, and your brake sensors won't go nutz.
Look at your RPO codes in your glove box. It's a white sticker which says "Service Parts Identification" and has a bunch of 3 digit alpha-numeric codes which identifies your truck's specific options packages. GT4 is 373s,GT5 is 410s, and GT6 is 342s.
There's a thread which identifies most of the RPOs in the Tech section of CF.
Be sure the shop reprograms your PCM with the new gear ratio, this way your speedometer will still be accurate, and your brake sensors won't go nutz.
Look at your RPO codes in your glove box. It's a white sticker which says "Service Parts Identification" and has a bunch of 3 digit alpha-numeric codes which identifies your truck's specific options packages. GT4 is 373s,GT5 is 410s, and GT6 is 342s.
There's a thread which identifies most of the RPOs in the Tech section of CF.
Also I have no speedometer. It was my GPS until it got stolen.
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pjr7269
Silverado, Sierra & Fullsize Pick-ups
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Feb 23, 2012 3:09 AM
