The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-16-2008, 08:34 AM   #1
kxnomore
Registered User
 
kxnomore's Avatar
 
Join Date: Dec 2006
Location: CA
Posts: 331
How do you separate the two driveshafts????

Anybody know if there is an easy way to just pull out the rear half of a two piece driveshaft? I would like to leave the carrier bearing and front half in place.

I am swapping an Eaton with a 12 bolt, and the u-joint size is different, but it looks like I could just use the rear half of the 12 bolt driveshaft. The length appears to be exactly the same. Do these come apart pretty easy?

Thanks in advance...
kxnomore is offline   Reply With Quote
Old 02-16-2008, 08:45 AM   #2
oldsmobilekindofguy
Registered User
 
Join Date: Aug 2007
Location: Stratford,SD
Posts: 296
Re: How do you separate the two driveshafts????

I would like to know this also because I have a similar problem,
__________________
1967 c-10 longbox project, check it out in projects
1969 c-10 parts pickup, twisted frame

Daily driver- 1970 Olds delta 88, 2dr., 455, gotta love the big block
oldsmobilekindofguy is offline   Reply With Quote
Old 02-16-2008, 10:05 AM   #3
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: How do you separate the two driveshafts????

unbolt from diff, and pull. If it doesn't slip right off, then something is way wrong.
Longhorn Man is offline   Reply With Quote
Old 02-16-2008, 10:48 AM   #4
kxnomore
Registered User
 
kxnomore's Avatar
 
Join Date: Dec 2006
Location: CA
Posts: 331
Re: How do you separate the two driveshafts????

Thanks Longhorn Man! But just my luck, they're stuck together something fierce. I'll eat a full bowl of wheaties in the morning and let you know what happens...
kxnomore is offline   Reply With Quote
Old 02-16-2008, 10:50 AM   #5
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: How do you separate the two driveshafts????

you can try pumping grease in the zerk fitting, that'll obviously lube it, and it *should* push the two apart a bit too.
Longhorn Man is offline   Reply With Quote
Old 02-16-2008, 10:51 AM   #6
long67
Registered User
 
long67's Avatar
 
Join Date: Dec 2003
Location: Yakima,WA.
Posts: 150
Re: How do you separate the two driveshafts????

Mine has a bolt in the center of the middle yoke behind the u-joint. I had two press it apart.
__________________
Mark
67 c20 custom camper
55 Olds 2dr hardtop
96 mustang
11 dodge nitro
long67 is offline   Reply With Quote
Old 02-16-2008, 11:37 AM   #7
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: How do you separate the two driveshafts????

if it's bolted, how does the slip shaft slip?
Longhorn Man is offline   Reply With Quote
Old 02-16-2008, 12:02 PM   #8
Pont406
Registered User
 
Join Date: Aug 2007
Location: West Hills, California
Posts: 679
Re: How do you separate the two driveshafts????

Mine is bolted also.
Attached Images
 
Pont406 is offline   Reply With Quote
Old 02-16-2008, 12:03 PM   #9
sdkid
Registered User
 
Join Date: Sep 2004
Location: Pierre SD
Posts: 1,533
Re: How do you separate the two driveshafts????

The slip yoke may have a collar on the end of it. You may need to unscrew the collar. If it is a 4 speed trans the slip yoke will be between the shafts, if it from a 3 speed or an auto the slip will be in the tailshaft of the trans. If the slip is in the trans oneof the shafts will have the yoke bolted on the end of the shaft.
__________________
I think the world needs a drink...

Help somebody...If you can....VanZant

We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men.
Tracy Byrd

Member# 13924
'70 c10, 350/350
'68 c10 250/4spd
'68 c10 no eng/trans fac ps/pb/ac/at
(future father/sons project)
'48 Chevy Loadmaster

Last edited by sdkid; 02-16-2008 at 12:05 PM.
sdkid is offline   Reply With Quote
Old 02-16-2008, 12:14 PM   #10
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: How do you separate the two driveshafts????

woah... I ALWAYS forget about that... thanks!
On the longhorns, there is a slip yoke on the tranny AND a slip shaft on the 2 shafts. No bolt. I automaticly picture that set up.
Although... I didn't have to remove a bolt on the burb when I pulled the shaft out of it...
Longhorn Man is offline   Reply With Quote
Old 02-17-2008, 10:40 PM   #11
brad_man_72
the boat guy
 
brad_man_72's Avatar
 
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
Re: How do you separate the two driveshafts????

1/2 one shaft 1/2 the other should get you on the road, but will no doubt give you a vibration. 2 piece driveshafts need to be balanced as an assembly.
__________________
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,
brad_man_72 is offline   Reply With Quote
Old 02-18-2008, 06:18 AM   #12
john
member #16
 
john's Avatar
 
Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
Re: How do you separate the two driveshafts????

Buy a conversion u joint.
john is offline   Reply With Quote
Old 02-18-2008, 09:05 AM   #13
kxnomore
Registered User
 
kxnomore's Avatar
 
Join Date: Dec 2006
Location: CA
Posts: 331
Re: How do you separate the two driveshafts????

Thanks everybody for the advice and the saved potential vibration. I picked up a NAPA #348 Conversion U-joint and it worked great. My truck is back on the road and I'm loving the 12 bolt with a 3.08 rear end ratio!

Next week I'm swapping a non-original 3/4 ton 8 bolt front end with the 5 lug 1/2 ton set up from the same truck I got the 12 bolt out of. Hopefully you all will have some good tips for that one. Will it even work?
kxnomore is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:38 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com