The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - $200+ to switch speedo in transmission swap

84chevyguyid · 03-12-2014, 11:23 AM

I went on Bowtie Overdrive and they had a chart that you input your tire size, and axle ratio and it told you what gear you should have in the trans and what gear for the speedo drive out. Its easy to pull the tail housing and install or change the output shaft gear then match it with the right driven gear and your speedo should be pretty close.

03-12-2014, 11:23 AM	#6
84chevyguyid Registered User Join Date: Feb 2012 Location: Mud Lake, Idaho Posts: 347	Re: $200+ to switch speedo in transmission swap I went on Bowtie Overdrive and they had a chart that you input your tire size, and axle ratio and it told you what gear you should have in the trans and what gear for the speedo drive out. Its easy to pull the tail housing and install or change the output shaft gear then match it with the right driven gear and your speedo should be pretty close.