700r4 install driveshaft ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

canso · 03-06-2003, 08:48 PM

I have installed a 700r4. I have a driveshaft off of a 83 Chev vehicle that is the correct lenghth. The newer drive shaft has larger caps on the u joints. Where the drive shaft connects to the tranny I have no problem. Where the drive shaft connects to the rearend, the caps are smaller on the diff yoke. I am told there is a standard cross over u joint for this. Instead of using a cross over u joint I would like to change the yoke on the front of the diff to one with the larger caps. I need to figure out what to get a yoke off of that will work. I am wondering if anyone has been through this. My diff is a 72 12bolt. Thanks

Jwill41 · 03-06-2003, 08:51 PM

i would go with the "cross over" u-joint. There is nothing wrong with doing it that way and they are availiable at most parts stores.

canso · 03-06-2003, 08:56 PM

If I can not find the right part, I will have to go with the crossover.

03-06-2003, 08:48 PM	#1
canso Registered User Join Date: Jun 2001 Posts: 92	700r4 install driveshaft ? I have installed a 700r4. I have a driveshaft off of a 83 Chev vehicle that is the correct lenghth. The newer drive shaft has larger caps on the u joints. Where the drive shaft connects to the tranny I have no problem. Where the drive shaft connects to the rearend, the caps are smaller on the diff yoke. I am told there is a standard cross over u joint for this. Instead of using a cross over u joint I would like to change the yoke on the front of the diff to one with the larger caps. I need to figure out what to get a yoke off of that will work. I am wondering if anyone has been through this. My diff is a 72 12bolt. Thanks

03-06-2003, 08:51 PM	#2
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	i would go with the "cross over" u-joint. There is nothing wrong with doing it that way and they are availiable at most parts stores. __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

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03-06-2003, 08:56 PM	#3
canso Registered User Join Date: Jun 2001 Posts: 92	If I can not find the right part, I will have to go with the crossover.



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