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Old 12-08-2017, 06:01 PM   #18
BigPapa
 
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Name: BigPapa
Title: Truckless
Status: Not Here
Join Date: Jan 2008
Location: Springfield, TN
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Posts: 5,008
I believe you need this tone wheel. It's made to mount to the crank in front of the damper.

Tach Kit

Click the image to open in full size.

Another issue with your setup is the fan hub turns faster than the crank so you're not going to get an accurate engine RPM from the fan pulley no matter what tone wheel you use.

Here's a good look at the tone wheel in the cam gear from an '01. If it didn't have the gap it would have 60 teeth, hence the 60-2 on the Destroked tone wheel.

Click the image to open in full size.
Attached Images
File Type: jpg Destroked.jpg (44.2 KB, 0 views)
File Type: jpg 3946436 Gear.jpg (323.7 KB, 0 views)
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Scott

2003 Avalanche Z71

Common sense is like deodorant. The people that need it most never use it.
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