Is there a different driveshaft for big block cars?
10-15-2010, 07:24 PM
#1
New Member
Thread Starter
Join Date: Sep 2010
Location: San Diego, CA
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Is there a different driveshaft for big block cars?
I am swapping a 440 into my 318 E-body. I have a 8 3/4" rear. I bought a big block yoke (7290) for my 489 third member. The auto part stores offer two different U-joints (big or small yoke). How are these U-joints different? Is there a BB driveshaft that I should be looking for or can I reuse my driveshaft?
Thanks!!
Thanks!!
10-15-2010, 09:15 PM
#2
A.K.A Bob Dodge
Join Date: Mar 2010
Location: couer d' alene id.
Posts: 1,526
Likes: 0
Received 0 Likes
on
0 Posts
if i rember right it varys by car? some use bigger u joints, but you can keep your stock driveshaft and use a combination u joint 2 ends small two ends bigger
10-16-2010, 06:41 AM
#3
Mopar Lover
Mango -
Definite maybe. The BB will have a different tranny (bell housing) and the overall length might be different. When I switched from a 318 to a 440 in my Charger, I needed a LONGER drive shaft to fully engage the tranny spline. Yes, the rear U-joints may be different too, but that's not usually a problem as when doing the conversion, unless you get very lucky, it's a good idea to have a custom drive shaft made, or your old one "re-built" to the new specs. That's what I did.
Archer
Definite maybe. The BB will have a different tranny (bell housing) and the overall length might be different. When I switched from a 318 to a 440 in my Charger, I needed a LONGER drive shaft to fully engage the tranny spline. Yes, the rear U-joints may be different too, but that's not usually a problem as when doing the conversion, unless you get very lucky, it's a good idea to have a custom drive shaft made, or your old one "re-built" to the new specs. That's what I did.
Archer
10-16-2010, 02:42 PM
#4
Mopar Lover
Mango -
Definite maybe. The BB will have a different tranny (bell housing) and the overall length might be different. When I switched from a 318 to a 440 in my Charger, I needed a LONGER drive shaft to fully engage the tranny spline. Yes, the rear U-joints may be different too, but that's not usually a problem as when doing the conversion, unless you get very lucky, it's a good idea to have a custom drive shaft made, or your old one "re-built" to the new specs. That's what I did.
Archer
Definite maybe. The BB will have a different tranny (bell housing) and the overall length might be different. When I switched from a 318 to a 440 in my Charger, I needed a LONGER drive shaft to fully engage the tranny spline. Yes, the rear U-joints may be different too, but that's not usually a problem as when doing the conversion, unless you get very lucky, it's a good idea to have a custom drive shaft made, or your old one "re-built" to the new specs. That's what I did.
Archer
you'll just need a completely new trans, and drive line. I'd suggest having a brand new one built with brand new u-joints. The 1050 ones is what I run.
Then you really don't need to worry about breaking anything behind the transmission.
10-20-2010, 04:47 PM
#5
Mopar Lover
Join Date: Apr 2009
Location: Michigan: The First Line of Defense From The Canadians!
Posts: 1,892
Likes: 0
Received 4 Likes
on
4 Posts
Heres a FAQ site from Dennysdriveshafts. http://www.dennysdriveshaft.com/freq...questions.html This should help you with some questions. It explains u-joint sizes too.
10-20-2010, 07:13 PM
#6
Mopar Lover
The change from small to large coincides with the engine size and the change came at the 383.
The 383 with a 2 barrel came with the small u-joints and the 383 with the 4 barrel came with the large u-joints and yokes. The step up to the large stayed through the 440 range.
Thread
Thread Starter
Forum
Replies
Last Post
mystarcollectorcar.com
Off Topic
0
12-21-2010 11:31 PM
