Speedometer Gear Chart!
Thread Starter
Racer
Joined: Apr 2004
Posts: 401
Likes: 0
From: IL
Speedometer Gear Chart!
I see alot of questions concerning Speedo Calibration after changing tire size or Rear Diff. ratios (3.08,3.73,4.11,ect.). I have an Excel spreedsheet with Drive and Driven Gears listed with GM part #'s. And a calculation sheet to help find the correct combo of gears. How do I attach an Excel spreedsheet here?
Now this file has alot of gears listed but it's not totally completed, still has some revisions to go yet. Most of the Driven gears (at Speedo Adaptor/Trans)
are used between transmission styles but may need only a sleeve to complete installation. Basically by combining different Drive and Driven gears one can usually get calibration very close = 5% error max.
Now this file has alot of gears listed but it's not totally completed, still has some revisions to go yet. Most of the Driven gears (at Speedo Adaptor/Trans)
are used between transmission styles but may need only a sleeve to complete installation. Basically by combining different Drive and Driven gears one can usually get calibration very close = 5% error max.
Melting Slicks
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
Re: Speedometer Gear Chart! (GasketDude)
You need to upload the file to a website. Then leave the link for where it is located. I am sure you could send the file to someone and they could put it up on their site to share.
Thread Starter
Racer
Joined: Apr 2004
Posts: 401
Likes: 0
From: IL
Re: Speedometer Gear Chart! (terryrudy)
Was checking some of the part numbers on a GM website earlier. Some of these numbers are older and may have been superseded or discontinued. I need to check this out further first.
Thanks folks for the info/offers, I'll keep keep researching and repost.
Thanks folks for the info/offers, I'll keep keep researching and repost.
