Speedo Driven Gear
Instructor
Joined: Jun 2007
Posts: 129
Likes: 7
From: dallas pa
just changed mine to the "black" gear and it seems close
i had removed a "natural" from when it had a 3.08 as i also had installed a 3.55
but it still depends on your tire size and speedo
there are a couple of web sites that will give you some guidance
i had removed a "natural" from when it had a 3.08 as i also had installed a 3.55
but it still depends on your tire size and speedo
there are a couple of web sites that will give you some guidance
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 2,114
Likes: 0
From: upstate N.Y.
Thanx bt and Duke. So it looks like I need the black 40 tooth if i am understanding this right? bt,did you have to put in a different sleeve asm?
Last edited by 76 VETTE; Sep 10, 2007 at 06:46 PM.
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Instructor
Joined: Jun 2007
Posts: 129
Likes: 7
From: dallas pa
no i did a direct swap, the th350 and a muncie use the same small gear set, some members may have some laying around, this website has some good info or you can use keislers site to calculate rpm and speed,
http://chevelleengineer.home.comcast.net/speedo.htm
http://chevelleengineer.home.comcast.net/speedo.htm
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