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

jd21476 · 03-10-2014, 03:27 PM

I had my T350 tranny swapped out to a 700R4. I have 4.10 gears and a 350 motor and my speedo is now showing about 90MPH when I'm cruising at about 70MPH. I ordered some new gear for the speedo but the tranny shop told me that they were the wrong gears and I had to get an in-line adapter. I called a local speedo shop and he told me it would be around $200ish to get the adapter nad fit it on the truck. This seems awefully expensive.

Anyone else deal with this issue?

03-10-2014, 03:27 PM	#1
jd21476 Registered User Join Date: Aug 2013 Location: San Diego, CA Posts: 236	$200+ to switch speedo in transmission swap I had my T350 tranny swapped out to a 700R4. I have 4.10 gears and a 350 motor and my speedo is now showing about 90MPH when I'm cruising at about 70MPH. I ordered some new gear for the speedo but the tranny shop told me that they were the wrong gears and I had to get an in-line adapter. I called a local speedo shop and he told me it would be around $200ish to get the adapter nad fit it on the truck. This seems awefully expensive. Anyone else deal with this issue? __________________ 1973 Chevy K20

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