3-Speed to 4-Speed Conversion
Just did the swap 6 months ago. I am very pleased with the results.
You will need:
Get 4-speed drive shafts, and take off one end. You do not need to cut them. Just use half of your old shaft and the other half 4-speed shafts. The old drive shaft ends go on your axles, the newer ends go on your xfer.
You will not need to move the cross member, but it
will be tight. Make sure your
parking brake is in perfect condition before you put the tranny in because you
will not be able to get inside it once it is up in there.
You may want to exchange parking brake assemblies with you old one,
because the handle and mounts are different.
You may be able to switch just the cable, do that if you can.
Don't forget your reverse lights. Route your wires from the column to the switch on the transmission.
You'll have to cut a hole in the floor for the new shifter location for both the transmission and xfer (do that last).
Make sure you have all the linkage for the transfer if you use a 4-sp transfer.
Good luck and e-mail with any questions.---JIM