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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: gharris79 on November 03, 2011, 01:43:52 pm

Title: What gear do I use???
Post by: gharris79 on November 03, 2011, 01:43:52 pm

Hey guy's i recently swaped out my 3:08's for 3:42's in my 87 2wd. Now my speedo reads too fast. I'm running a 700r4 with 275/60/15's. It's registered in kms and reads 30kms too fast. I beleive the gear in my tranny is orange.

Title: Re: What gear do I use???
Post by: bake74 on November 03, 2011, 10:15:27 pm

     Have you tried to contact a local tranny shop ?

Title: Re: What gear do I use???
Post by: Captkaos on November 03, 2011, 11:41:34 pm

Read this: http://73-87.com/7387garage/drivetrain/speedo.htm

Title: Re: What gear do I use???
Post by: gharris79 on November 07, 2011, 03:51:54 am

Thanks i'll check it out