05-22-2015, 09:54 AM | #1 |
Registered User
Join Date: May 2015
Location: Lompoc California
Posts: 7
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3 speed floor shift
I have an 71 Blazer 307/3speed standard shift . Has anyone done a 3speed floor conversion if so where on the tunnel does the shifter come through.Is it on the corner or on the flat of the tunnel . Just preparing myself if I have to make a table to sit the boot on
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05-22-2015, 10:26 AM | #2 | |
Senior Member
Join Date: May 2011
Location: Greencastle PA
Posts: 6,807
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Re: 3 speed floor shift
Quote:
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05-22-2015, 10:28 AM | #3 |
Senior Member
Join Date: Jul 2000
Location: North Texas
Posts: 3,599
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Re: 3 speed floor shift
I suggest you buy the shifter, then mount it without the handle to determine where the floorboard cut-out needs to be. Then drill a hole from the bottom where the shifter would come through in neutral. Open up that hole from the top just enough to let the handle poke through, and then enlarge a little at a time. On the last one I did, my floorboard hole ending up being only around 2" wide and 4"-5" long. It's easier to make the hole larger than smaller.
Here's the only 3-speed shifter I would use: http://www.hurst-shifters.com/produc...n-and-pick-up/ And here's a thread about the installation in a 64 truck, but it may give you an idea of where it mounts relative to the transmission centerline. http://67-72chevytrucks.com/vboard/s...d.php?t=408144 Whatever you use, be sure to use the truck version with a taller handle.
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
05-22-2015, 01:31 PM | #4 |
Registered User
Join Date: Apr 2008
Location: Md
Posts: 2,482
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Re: 3 speed floor shift
On My 2wd Blazer conversion. I went with a 3 speed Saginaw, floor shifter out of a 69-Nova/Camaro. Center of shifter is 30" off the drivers door, 27" forward of the floor bump-up to the rear.
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