Determining driveline angle....
#1
Registered User
Thread Starter
Determining driveline angle....
I'm going to be getting a proper transmission cross member into the old crewcab soon, and was wondering what the proper drive line angle should be.
I'll be installing new front motor mounts, and then a new NV4500 mount as well. Need to know how to go about setting up the truck so I can determine the proper drive line angle. I'm going to have to modify the stock cross member a bit to work with the NV4500 and mount, so I figured this would be the best time to make sure my drive line angle was correct.
Here are my thoughts. I will level out the frame under the cab, so the straight frame rail run will be level. Then from there I can install an angle finder on top of the motor and then adjust the transmission cross member to get the proper driveline angle.
Thoughts?
I'll be installing new front motor mounts, and then a new NV4500 mount as well. Need to know how to go about setting up the truck so I can determine the proper drive line angle. I'm going to have to modify the stock cross member a bit to work with the NV4500 and mount, so I figured this would be the best time to make sure my drive line angle was correct.
Here are my thoughts. I will level out the frame under the cab, so the straight frame rail run will be level. Then from there I can install an angle finder on top of the motor and then adjust the transmission cross member to get the proper driveline angle.
Thoughts?
#2
Registered User
Join Date: Feb 2008
Location: Queens, NY
Posts: 228
Likes: 0
Received 0 Likes
on
0 Posts
#4
Registered User
Join Date: Oct 2010
Location: Oak Hills (Cajon Pass Summit), Ca
Posts: 561
Likes: 0
Received 0 Likes
on
0 Posts
That link doesn't address the angle of the engine and transmission with respect to the horizontal. I'm curious what would be the "ideal" tilt-back of the radiator, engine and trans.
#6
If things aren't jacked at hard angles, stressing the U-joints, things should be alright. The manual I was looking at when I installed my center bearing had some specifications that just could not be met. My rear driveline is a straight shot from the transfer case to the rear axle. It was difficult to find the correct center bering, parts guy kept coming back with the wrong one that his parts book said was right.
My center bearing is huge, and it is the only one that would fit the driveshaft. The manual wanted any angle taken up with the center u-joint, making the short stub coming out of the transfer case horizontal, then the long shaft angling down to the rear axle. Just couldn't be done. The drop from the center bearing makes it a straight shot. Truck runs fine.
My center bearing is huge, and it is the only one that would fit the driveshaft. The manual wanted any angle taken up with the center u-joint, making the short stub coming out of the transfer case horizontal, then the long shaft angling down to the rear axle. Just couldn't be done. The drop from the center bearing makes it a straight shot. Truck runs fine.
#7
Registered User
Thread Starter
I've been thinking about this and I'm going to make sure my fan and clutch fan hub are square with my radiator. Right now I'm close, but I jacked up the tranny another 1/2" and it was about perfect. From there I will address my drive line angles.
Guys with all original trucks, is your fan and clutch fan square with your rads?
Guys with all original trucks, is your fan and clutch fan square with your rads?
Trending Topics
#9
Registered User
Join Date: Oct 2010
Location: Oak Hills (Cajon Pass Summit), Ca
Posts: 561
Likes: 0
Received 0 Likes
on
0 Posts
Thread
Thread Starter
Forum
Replies
Last Post
bngcustoms
3rd Gen Engine and Drivetrain -> 2003-2007
5
07-14-2009 05:14 PM
ultramag
3rd Gen Engine and Drivetrain -> 2007 and up
12
12-15-2007 07:03 PM
JD730
24 Valve Engine and Drivetrain
3
11-27-2006 05:54 AM
-Ross-
General Diesel Discussion
2
06-19-2006 09:52 AM