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11-06-2012, 03:05 PM #1
- Join Date
- Nov 2012
84 c10 silverado 700r4 to th350 swap driveshaft help
Ok guys i need some help here badly.I have a 84 c10 chevy silverado truck it had a 700r4 transmission that stopped shifting i checked the obvious quick fixes to no avail.So i had a thm 350 that i rebuilt some time back i figured i would just put it in place of the 700r4.Now here is my problem the tailshaft on the th350 is a 6 inch tail and the 700 r4 has a 9 inch tailshaft .So my drive shaft is 3 inches to short.I took it to a machine shop in town and they said they couldn`t add 3 inches to it without replacing the whole main tubing .They said i needed a longer drive shaft and they could then cut a 3 inch section out no problem and shorten it.I measured the drive shaft i have it is 5` 11 and half inches.So if i added 3 inches that would mean i need a drive shaft that is 6` 2 and half inches.
I have no ideal where to get either a drive shaft that would work but is longer to have it cut down or a drive shaft that is the size i need.So i am hoping you guys can help me and point me in the right direction on this becuase i`m lost .
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Ok i think i know why i am having so much trouble with this.The drive shaft i have now is a one piece drive shaft .I beleave that someone has removed the 2 piece drive shaft and replaced it with this one piece .the drive shaft i have now is 71 1/2 inches and i need one 74 1/2 inches.
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Ok so i called to have a one piece drive shaft made but they want 489$ for one and i just don`t have that kind of funds .So i`m thinking of going to a junk yard and finding the 2 piece drive shaft and replacing it.
I see 2 places under the truck that could have been for the carrier bearing this is one place here.
You can see in the first pic the frame is rounded somewhat.like maybe for a carrier bearing?This is about a foot and half or 2 foot from the rearend.
These next pics are about halfway between the transmission and the rearend and looks like a bracket has been cut from the frame.So does anyone know whitch of these 2 spots is where the carrier bearing mounts?
11-08-2012, 07:48 AM #2
- Join Date
- Jun 2012
do You have already installed the new 2pieces driveshaft?
In a old Truck iīve got a 2pieces driveshaft, too.
I marked the install-position, i hope you, too?!?
If you donīt mark the position of your driveshaft at your diff and transfer-case it will be a long tortoure, till the driveshaft turns 100% right without "vibrations".
Greetings from Bavaria
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