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11-13-2005, 11:01 PM
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#1 |
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Registered User
Join Date: Nov 2005
Location: S. Illinois
Posts: 2
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71 Chevy - Driveshaft
I have a 71 Chevy LWB we are wanting to replace the 3spd with a 700r4 and I'm wondering if anyone out there has found a driveshaft that works with this without modification, or if I'm just better off having my current shaft shortened.
If I have to shorten it, does anyone know by how much? |
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11-13-2005, 11:18 PM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 71 Chevy - Driveshaft
Welcome to the board
I can't answer your Q...but I'm willing to bet some one can. Is this a small block truck? Is it mounted in the correct V-8 position with the V-8 towers? |
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11-14-2005, 12:57 PM
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#3 |
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Registered User
Join Date: Nov 2005
Location: S. Illinois
Posts: 2
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Re: 71 Chevy - Driveshaft
The truck is an original sb v-8 with a 3spd column shift transmission and a 2pc driveshaft.
I am wanting to go back with the 350 sbc in the original location, with a 700r4 transmission. My key question is if there is a ready fit driveshaft off of some other vehicle that I can use, or do I have to get my shaft cut. If I have to get it cut, does anyone know how much? |
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11-15-2005, 10:56 AM
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#4 |
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Registered User
Join Date: Aug 2005
Location: new jersey
Posts: 14
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Re: 71 Chevy - Driveshaft
that's a good question. I have the same truck n am looking 4 the same answer n i have a th 350 trans w/ a 350.
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11-15-2005, 04:29 PM
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#5 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 71 Chevy - Driveshaft
If not mistaken, your 3 speed is the same length and takes the same yoke as a TH350.
Still not able to answer your Q.. but TH350 to 700R4 has been done a billion times on here, and THAT could be answered. |
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11-15-2005, 04:46 PM
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#6 |
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Back in the sticks
Join Date: Jan 2001
Location: Fordland, MO
Posts: 3,188
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Re: 71 Chevy - Driveshaft
When I get home I'll measure my driveshaft. I'm pretty sure its a 57". Don't know what its off of, one of my buddies gave it to me when I did the swap. It is the same spline as a TH350, though, so thats easy. More tonight. Jeff.
__________________
1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty |
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11-15-2005, 06:48 PM
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#7 |
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Back in the sticks
Join Date: Jan 2001
Location: Fordland, MO
Posts: 3,188
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Re: 71 Chevy - Driveshaft
Ok, I was a little off. Mine is 68" from center of U-joint to U-joint. Like I said, I don't know what it came off of, but its a good fit. Only issue I have, is when I hit a big bump, the shaft rubs the cross member it runs through on the frame. That might just be a 30 year old shock thing though. Jeff.
__________________
1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty |
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