Click on image for the lowdown. 
====
| | | Forums66 Topics128,090 Posts1,056,345 Members48,442 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jul 2014 Posts: 22 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 22 | I have a 66 half ton 3 speed. Got an SM465 from a 68 that I want to install. Has anyone done this ? I have the 68 bellhousing. The driveshaft is the problem. Can I have the 3 speed driveshaft modified to work ? A different yoke and lengthened ? Thanks.
| | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | A driveshaft shop can make anything you need. Either modify or new... or You could possibly find a donor. Never had one lengthened but have had them shortened. I'm guessing they would advise at least a new tube instead of adding a section.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: Jul 2014 Posts: 22 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 22 | I was wondering if it would be easy for a driveline shop. I will go that route. Thanks.
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Driveshafts are not lengthened, new tubes must be installed, they are shortened all the time.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | You will need the bell housing that matches the 465. It has a larger center hole.
A good drive shaft shop can match up the driveshaft.
Are you in the K.C. area?
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jul 2014 Posts: 22 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 22 | Wrenchbender I am in the KC area. I have the proper Sm465 bell housing so that is OK. The sm465 is about 4 inches shorter than the 3 speed and the yoke needs to change from a splined end to a ujoint end. Can you recommend a driveline shop ? | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Yes. North Manufactory. It is a mom & pop operation. 816 333-8505
He has an interesting business. When an overtheroad truck comes through town & has driveshaft problems, the truck stops all refer him to North. He goes out day-night-weekends, pulls the drive shaft & takes it to the shop, rebuilds it & takes it back. It saves the trucker days of downtime & tow bills.
Most of the guys around here that do T-5 conversions use him to modify their drive shafts.
George
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jul 2014 Posts: 22 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 22 | Thank you George. I will call him tomorrow. He sounds like the kind of guy that can handle about anything. If the big rig guys trust him he is gold. I saw your truck years ago George and it is very nicely done. I live 4 miles west of Lenexa.
| | |
|
|
