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Old 05-07-2013, 06:47 PM   #1
cjj737
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Drive shaft ?

67 c10 has a 250 ci w/3 speed. going to install a 350 w/ th400 who makes or knows what size shaft i need as in length.
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Old 05-07-2013, 07:24 PM   #2
brad_man_72
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Re: Drive shaft ?

You do.
Measure your truck, everything installed, at ride height.
One piece, tailshaft to center of rear ujoint.
Two piece, tailshaft to center of carrier bearing, center of carrier bearing to center of rear ujoint.

Way too many chassis lengths, motor mounts, motor mount positions to trust a measurement from somebody with a simmilar truck.
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Old 05-07-2013, 07:58 PM   #3
cjj737
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Re: Drive shaft ?

thanks brad man 72
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Old 05-07-2013, 09:58 PM   #4
damianbryand
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Re: Drive shaft ?

I have a 350 w a turbo 400 in my 68. I had the driveshaft cut to 54.5" from center to center.
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Old 05-08-2013, 09:11 AM   #5
Sammy
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Re: Drive shaft ?

Use Brad's advice he does this for a living.
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Old 05-09-2013, 11:49 AM   #6
brad_man_72
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Re: Drive shaft ?

Quote:
Originally Posted by Sammy View Post
Use Brad's advice he does this for a living.
Tru dat! Lol

Tailshaft to center of 1st ujoint should be 2.5" so if you want a center to center measurement just subtract 2.5" from your tailshaft measurement.
In general a tailshaft measurement is better when having a shaft built because not all trans yokes are the same.
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck
66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate.
28, model a rpu project,
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Old 05-08-2013, 09:18 AM   #7
CC69Rat
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Re: Drive shaft ?

Ex. Big block, TH400, 73-87 Kmember swap and custom mounts. My drive shaft is 55 1/4" long, Tailshaft to center. (the best I can recall) Spicer Ujoints. 4/6 drop.

But, .. your truck will likely be different. I'd measure it as Brad mentions, absolutely.
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