Need new drive-shaft...they said not possible.
08-07-2007, 05:02 PM
#11
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If you go with a 2 piece, brace the **** out of your carrier bearing and support. The stronger that can be the less it'll deflect and the less likely it'll be to fail.
08-07-2007, 05:07 PM
#12
Originally Posted by ranwalk
What crossmember did you use for the 80e swap? Did it maybe raise up the tailshaft too high?
08-07-2007, 05:08 PM
#13
Originally Posted by vanillagorilla
If you go with a 2 piece, brace the **** out of your carrier bearing and support. The stronger that can be the less it'll deflect and the less likely it'll be to fail.
But before I do that I have to fab a crossmember.
08-07-2007, 05:55 PM
#16
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Originally Posted by ZZebes
Go Carbon Fiber, They are rated to over 2000ft/lbs and if they break they shatter causing no damage to the truck
08-07-2007, 05:57 PM
#17
Just went under for a peek. Here's what it looks like.
Ranwalk, looks like I was wrong. Isn't notched at all but a ledge was built and a spacer mounted on top of that.
Here's a picture of the scuff marks on the crossmember and the marks on the shaft...upon closer inspection it doesn't look like it's cutting or scoring itelf but just rubbing...which doesn't make it any less of a problem.
The two crossmembers I have available to me are the after one that's getting hit by the drive shaft...
And the forward one that is right beneath the fuel pump. It's about 15 inches from the tailshaft of the Tranny.
Idealy I need one right in the middle of the two.
Here's a long view of some of the stuff I have running in the vicinity of the drive shaft.
Ranwalk, looks like I was wrong. Isn't notched at all but a ledge was built and a spacer mounted on top of that.
Here's a picture of the scuff marks on the crossmember and the marks on the shaft...upon closer inspection it doesn't look like it's cutting or scoring itelf but just rubbing...which doesn't make it any less of a problem.
The two crossmembers I have available to me are the after one that's getting hit by the drive shaft...
And the forward one that is right beneath the fuel pump. It's about 15 inches from the tailshaft of the Tranny.
Idealy I need one right in the middle of the two.
Here's a long view of some of the stuff I have running in the vicinity of the drive shaft.
08-07-2007, 05:58 PM
#18
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This is true, but I've never seen a 2 piece CF d-shaft. That would be big $$$$.
8" is common for an Al. shaft, especially in diesels. It has to be such a big dia. because Al. isn't as strong as steel. But because they're so big, they have a lower critical speed as Spoolin' said earlier (like 105mph).
8" is common for an Al. shaft, especially in diesels. It has to be such a big dia. because Al. isn't as strong as steel. But because they're so big, they have a lower critical speed as Spoolin' said earlier (like 105mph).
08-07-2007, 06:03 PM
#19
Originally Posted by ZZebes
Go Carbon Fiber, They are rated to over 2000ft/lbs and if they break they shatter causing no damage to the truck
Originally Posted by vtec
expensive as all getout, and if they so much as TOUCH something while turning, they will disentigrate. in your situation, you would have been stranded somewhere if you had a carbon fiber shaft in the truck.
08-07-2007, 06:06 PM
#20
Originally Posted by vanillagorilla
...But because they're so big, they have a lower critical speed as Spoolin' said earlier (like 105mph).
Makes me think it has a critical RPM but once it's past that it's ok. Again not the smartest thing, I know.