Speedo recalibration
Thread Starter
Joined: Oct 2002
Posts: 905
Likes: 42
From: Hamilton Ontario Canada
Car: 1985 Camaro IROC-Z
Engine: 350
Transmission: GForce T-5
Axle/Gears: 10 bolt 3.73 posi
Speedo recalibration
Hi everyone.
I just swapped in a set of 3.73 rearend gears into my iroc.
Tire size is standard. 245/50/R16
Speedo is 140mph
Tranny is a T5.
Anyone know the correct colour gears to recalibrate my speedo and make it correct?
Please don't ask my to look in the faq's, because it doesn't make sense to me.
Thanks
I just swapped in a set of 3.73 rearend gears into my iroc.
Tire size is standard. 245/50/R16
Speedo is 140mph
Tranny is a T5.
Anyone know the correct colour gears to recalibrate my speedo and make it correct?
Please don't ask my to look in the faq's, because it doesn't make sense to me.
Thanks
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
A search on this board would have found you the info. Its a very common swap.
You need a 7 tooth purple drive gear and a 21 tooth driven gear. However, I think they are tough to find these days, so good luck.
You need a 7 tooth purple drive gear and a 21 tooth driven gear. However, I think they are tough to find these days, so good luck.
Senior Member
iTrader: (2)
Joined: May 2004
Posts: 561
Likes: 3
From: Lake Elsinore,CA
Car: 1999 F-1 Camaro Conv 1990 Iroc-Z
Engine: LS1/L98
Transmission: A4/A4
Axle/Gears: 3.23/3.27
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