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Hello, I’m looking for some feedback and/or advice. I have a 1972 F350 that has the 4 speed manual transmission. I’d love to convert the truck to an automatic for ease of driving. Has anyone done this? Is it simple? Costly? What do I need to do?? Thanks in advance for any input.
Easy-peasy is to just buy an auto-equipped truck and transfer everything over that way you get all the little hard to find pieces, and scrap or part out the truck.
A column, a C6, and some time. Likely have to modify the driveshaft in some manner. Not that big of a deal, easier then putting a stick in it. You can leave the clutch pedal in it(or not). The rest just bolts in, the transmission crossmember can just slide and redrill to fit(I've done that putting a stick in them).
The only real issue might be the crossmember under the bellhousing. My '69 was removable to ease getting the bellhousing of the C6 in/out. My '70 stick truck did not come out. You just need to cut the rivets and replace with bolts.
Hello, I’m looking for some feedback and/or advice. I have a 1972 F350 that has the 4 speed manual transmission. I’d love to convert the truck to an automatic for ease of driving. Has anyone done this? Is it simple? Costly? What do I need to do?? Thanks in advance for any input.
Minor modification to the wiring: You'll probably have to change your Neutral Safety Switch, and the place where it hooks into the wiring.
The NSS was only hooked up with an automatic. There is a flat 4 pin plug under the dash. Two are for NSS(which just have a jumper wire for a stick truck), and two for backup lights. The NSS and back up lights will plug into switch on bottom of automatic column.
Show me a 3 or 4 speed truck that had a NSS or a clutch switch. Never had them until the clutch safety switch happened in the 80's.
Even when the transmission is a manual, the wiring harness has a connector for the Neutral Safety Switch.
There's also a provision for an alternate placement of the Reverse Switch.
Even though this is for a 1970, it should be close enough for 1972, at least for that part. The 1972 diagram isn't particularly informative about what plugs into the connectors it shows.
So even without a NSSwitch on the transmission being removed, it's still something to cope with when the automatic transmission is installed.
which engine do you have in your f250. Just watching. My conversion from 3-on-the-tree to c4 has not been the smoothest. A lot of self-induced misery (wrong c4 for starters).
A local driveshaft company can make a driveshaft longer or shorter. To shorten one they cut one end off the driveshaft. Cut the tube the required amount. Weld the end back on. Then rebalance it. To lengthen it they cut both ends off and weld them to a new and longer tube. Then balance it..
04-15-2018, 09:52 PM
