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Need some suggestions. I pulled out my old transmission and am putting in a 700R4. I have the appropriately shortened driveshaft, but can't seem to figure out how to get it in with the transmission in place. I purchased an aluminum driveshaft from a 86 C4, with the little harmonic balancer at the front. This shaft is bigger diameter than the old one, and I had to get a special u-joint at the back.
I removed the driveshaft once before without removing the transmission, but can't remember how I did it.
Remove the yoke from the driveline slide it into the transmission then slide the drive line in and hookup the rear then the front.
Any way thats how I do it.
OOPs you are going to have a little difficulty here. The 86 driveshaft is one piece with the yoke assembled. The original 73 had a joke that seperated from the shaft , thus there is no way to put the driveshaft in other than moving either the rearend or the transmission.
Maybe you could remove the transmission crossmember, lower the transmission down until the distributor is about to hit the firewall, slide the yoke in, put the U-joint in the differential, then jack the transmission back up and reinstall the crossmember.