need some driveshaft help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

matt_field · 04-29-2003, 08:55 PM

on my 67 k10, i installed a 383, auto tranny, (350) and a np205 transfercase. while installing this i had to slide my engine forward 1-1/2 -2 inches. i use to have a 2 piece driveshaft with my other motor (6cyl) and tranny (3-speed) now im going to a one piece driveshaft and i need one about 64'' ???? what would i tell the person if i was going to make one? i dont know much about this stuff. haha thanks

matt

Dads72 · 04-29-2003, 09:00 PM

Ignorant on this, but it seems like if you don't trust your measurements, the best thing would be to tow/haul/push your truck to the driveshaft shop and let them decide what would be best.
Where did you get your 383?

matt_field · 04-29-2003, 09:03 PM

haha, i dont feel confident on my measurements very much, it should be alright to drive it about 4 miles shouldnt it? on the front driveshaft? i bought my 383 from a friend but he had it built from about a 60 year old guy. its built with all 60s 70s parts. its kinda cool thanks

matt

Dads72 · 04-29-2003, 09:13 PM

Matt -
Look out for those "about 60 year old guys."
Wish I had your 383. Sounds like a cool truck.
Then again - you probably wish you had my shaft.
Never mind. Forget I said that.

Wherever you go, don't forget to have them balance everything and check out the u-joints too.
All the best.

beau396 · 04-29-2003, 10:15 PM

The drive line shop can make you a drive line with an adjustable slider style yoke. It will have enough adjustment to cover minor measuring errors. To measure you have to have all four wheels on the ground, everything on the truck that you normally would have (fenders, bumpers etc....) Then slide the slip yoke all the way into the transmission and measure from the u-joint retainer on the yoke to the end of the u-joint retainer on the pinion yoke. Basicaly center to center of the U-joints is what you are shooting for. The drive line shop will need to know what U-joints you are using for getting the right ends or reuse your old drive line ends. That is it. I brought in both U-joints I was going to use, the yoke for the trans and my measurement and $400 with me. The other choice is to scour the wrecking yards for the right size drive line, with the right ends or to get one that is too long and have the driveline shop cut it down and balance it.

04-29-2003, 08:55 PM	#1
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	need some driveshaft help on my 67 k10, i installed a 383, auto tranny, (350) and a np205 transfercase. while installing this i had to slide my engine forward 1-1/2 -2 inches. i use to have a 2 piece driveshaft with my other motor (6cyl) and tranny (3-speed) now im going to a one piece driveshaft and i need one about 64'' ???? what would i tell the person if i was going to make one? i dont know much about this stuff. haha thanks matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

04-29-2003, 09:03 PM	#3
matt_field Registered User Join Date: Apr 2001 Location: Detroit Lakes, Minnesota Posts: 885	haha, i dont feel confident on my measurements very much, it should be alright to drive it about 4 miles shouldnt it? on the front driveshaft? i bought my 383 from a friend but he had it built from about a 60 year old guy. its built with all 60s 70s parts. its kinda cool thanks matt __________________ 1971 k5 blazer 80k mike survivor 1972 3/4 ton 4wd Cummins 12v 1967 swb 2wd 427bbc 1968 4wd shortbox 1971 Cheyenne swb k10 unrestored 1971 Cheyenne super 40k 402bb survivor 1967 Chevy k10 (first truck) 1968 L78 camaro survivor 18k miles 1969 z28 survivor 60k miles 1969 z28 survivor 39k miles 1969 z28 rs survivor 80k miles

04-29-2003, 10:15 PM	#5
beau396 Registered User Join Date: Nov 2002 Location: oak harbor wa Posts: 61	The drive line shop can make you a drive line with an adjustable slider style yoke. It will have enough adjustment to cover minor measuring errors. To measure you have to have all four wheels on the ground, everything on the truck that you normally would have (fenders, bumpers etc....) Then slide the slip yoke all the way into the transmission and measure from the u-joint retainer on the yoke to the end of the u-joint retainer on the pinion yoke. Basicaly center to center of the U-joints is what you are shooting for. The drive line shop will need to know what U-joints you are using for getting the right ends or reuse your old drive line ends. That is it. I brought in both U-joints I was going to use, the yoke for the trans and my measurement and $400 with me. The other choice is to scour the wrecking yards for the right size drive line, with the right ends or to get one that is too long and have the driveline shop cut it down and balance it. __________________ '67 C10 short box fleet side wood bed small rear window frame off restoration. 396BB,Th400, ps, pwr disc 5 lug, posi 3.07, 2000 Suburban 60/40 pwr seats, 2.5" front drop 4" rear, powder coated running gear.

04-29-2003, 09:00 PM	#2
Dads72 Registered User Join Date: Nov 2002 Posts: 427	Ignorant on this, but it seems like if you don't trust your measurements, the best thing would be to tow/haul/push your truck to the driveshaft shop and let them decide what would be best. Where did you get your 383?

04-29-2003, 09:13 PM	#4
Dads72 Registered User Join Date: Nov 2002 Posts: 427	Matt - Look out for those "about 60 year old guys." Wish I had your 383. Sounds like a cool truck. Then again - you probably wish you had my shaft. Never mind. Forget I said that. Wherever you go, don't forget to have them balance everything and check out the u-joints too. All the best.



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