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View Full Version : Need help 9inch with 700r4 tranny.



96t/acj
10-15-2009, 07:08 AM
I just installed a 700r4 with a 9inch rear into my 70 nova. the drive shaft u joints is where my issues are being created. the factory drive shaft is to long by about three inches. so i went to a friends yard and found a drive shaft that would fit the 700r4 and be 3 inches shorter than my factory one. the u joint on the new drive shaft is two long to fit into the 9inch housing. meaning the ridges on the inside where the u joint rest will not allow the u joint to fit. looking at my factory u joint it is much smaller than the new u joint from the new drive shaft. So the end caps on the new drive shaft along with the body of the new u joint are two big. can any one suggest a u joint with a small body and big end caps?

big gear head
10-15-2009, 08:49 AM
The drive shaft that you picked up probably has the newer 3R u joints and the 9 inch probably has a 1310 yoke. Your old drive shaft also should have the 1310 u joints.

96t/acj
10-15-2009, 09:53 AM
Yes sir, so I needed a 1310 to 1330 conversion u joint. thanks for your help though.