Classic/Antique Car Repair: pulling a transmission for a 1978 Ford F-100, ford f 100, needle bearings

Question
My son has purchased a 1978 Ford F-100.  We need to pull the transmission to replace with a rebuilt unit and I was wondering is this a difficult process and should only be done by a certified mechanic?  My son is trying to learn how to work on his truck and also trying to save money.

Answer
Hello Bret,

You don't mention whether this transmission is Automatic, 3 or 4 speed although basic procedures are the same for all 3. Additionally, you don't mention how old your son is, his level of mechanical experience and whether you'll be there to help. To me, this is a job of medium comlexity so please consider the following:  

The biggest difficulty in transmission R&R is to keep everthing aligned and manage the weight and bulk of the transmision itself. While the former is obvious, your son needs a transmission lift to safely do the later. These can be rented for a nominal fee at any auto parts store like NAPA, Auto Zone, Pep Boys, etc.

The only other tip is to have several people available when pulling or lifting the old and rebuilt trans. Ideally, you'll also have a lift available as having the truck up high will make removal and reinstallation much easier (although the job can be done without putting the vehicle on a lift)

Also, one of your first steps will be to remove the drive shaft. When you've removed this components, wrap some duck tape or similar around the rear universal joint. This will help keep the caps on the universal and the needle bearings residing inside, inside and off your shop floor!       

Finally, plan to replace any old components with new such as transmission cooler hoses in the case of an automatic or clutch, pressure plate and throughout bearing in the case of a manual.

Thus, a successful job for your son will consist of planning ahead for any materials needed before you start, proper support of the removed transmission, some help for the heavy lifting and patience.
I'd also recommend consulting your shop manual for assembly/disassembly sequences. If your son has the maturity to follow these steps, be safe, then go for it. If you don't, use a pro as this is a heavy component to be treated with respect and a vital drivetrain component that needs precise alignment and exact replacement of linkages, hoses, etc. for proper operation.     


Good luck!!

Bob