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Old 04-05-2024, 07:59 PM   #1
BigTopGT
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Join Date: Apr 2019
Location: Fort Lauderdale, Florida 33311
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67 LongBed driveshaft length auto vs manual transmission

I'm away from my truck and found a driveshaft local to where I am at a fair price I can bring back with me.

The challenge is it's for a LongBed with a turbo 350, but I've got a LongBed with a 3 speed in my truck

Anyone know if they're the same length or if they're different.

Thanks in advance!!!
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Old 04-05-2024, 10:25 PM   #2
R.O.B.
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Re: 67 LongBed driveshaft length auto vs manual transmission

My 67 C20, 4spd SM465, granny gear. 2 piece driveshaft. When I installed the 700r4, I had to shorten the driveshaft 13 inches.
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Old 04-05-2024, 10:27 PM   #3
BigTopGT
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Re: 67 LongBed driveshaft length auto vs manual transmission

Quote:
Originally Posted by R.O.B. View Post
My 67 C20, 4spd SM465, granny gear. 2 piece driveshaft. When I installed the 700r4, I had to shorten the driveshaft 13 inches.
Thanks man.

I'm trying to figure out if the auto and manual driveshaft are the same length in the long beds so I can buy a fresher one than what I've got in it now.

I just had a custom one piece for my 71, but its not worth the expense for my 67, unfortunately.
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Old 04-06-2024, 10:34 PM   #4
MikeB
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Re: 67 LongBed driveshaft length auto vs manual transmission

TH350 with short tailshaft (most common) is the same length as a Saginaw 3-speed manual, and even a Muncie 4-speed.
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1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, 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 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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Old 04-07-2024, 12:09 AM   #5
BigTopGT
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Re: 67 LongBed driveshaft length auto vs manual transmission

Quote:
Originally Posted by MikeB View Post
TH350 with short tailshaft (most common) is the same length as a Saginaw 3-speed manual, and even a Muncie 4-speed.
Thanks!

That's exactly what I needed to know. 😁
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