swapping rear from 3.08 to 3.42 need help with speedo gears. - Third Generation F-Body Message Boards

eddie89TA · 05-16-2001, 09:00 PM

my buddy jim got a 87 iroc with 5.0 tpi and 5speed tranny (bone stock) 3.08 drum posi gear. the 3.08 sh*t the bed

and we got a mint 3.42 posi drum ready to go in it. but all we need is are the speedo gears..which ones do we need color,teeth count, part numbers would b great. also i 4got which one is driven and which one is the drive gear. thanks for the info ed

KED85 · 05-17-2001, 01:28 AM

Go to the dealer.
So much securerd answer.
They'll even give ya a illustrated print out!

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Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

Kevin91Z · 05-17-2001, 02:40 AM

3.42 gears in a T5 with stock tires is a 7 tooth blue drive gear and a 19 tooth white driven gear.

EDIT: Search this forum and I bet you can find the part numbers too.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

[This message has been edited by Kevin91Z (edited May 16, 2001).]

eddie89TA · 05-17-2001, 05:43 PM

thanks... the dealer in my area couldnt help me at all he just knows how to look up parts and set them on a counter then say "cash or charge"