Hello,

There is a local junkyard near me with a handful of 49 to 52 F6 trucks. I went and looked at a few today.

There is a 1951 (I think) with the big 6 and a four speed with reverse right-and-up. It is complete.

There is also a 1953 with no motor, but it has a flathead bell housing that also has reverse right-and-up. It has the bell housing and box, but nothing else.

I know that removing the top plate and looking for helical gears is the best way to tell a T98, but is there any way to tell quickly before I start hacking into these things?

Lastly, if both of these are indeed T98s, which one would be better in a 1950 F3 (stock, for now) that I built a EAC Mercury V8 for?

Thanks in Advance.

 

If reverse is to the right and up against the dash it is a T98. The T9 is to the right and back against the seat. The '51 would be the one you need. The '53 T98 doesn't have a transmission mount on the rear of the transmission and the input shaft is longer. You will need to check the rear bearing retainer/mount carefully on the '51, as they are prone to cracking. I had to weld mine.
Mark

 

Awesome - reverse is to the right and up by the dash. I am jacked up to have finally found one. Should I take everything from the bell housing back just to be sure?'

Thank you.

 

I don't know if the u-joints on the driveline are the same between the F2-3 and F4-6 trucks. I would suspect the F4-6 are larger. If they are the same, I would get the driveline to the carrier bearing, as it would be the right length. The transmission is a bolt in job, with the exception of the driveline. Save the rear transmission mount bolts as they are different than what your current transmission has. The T98 mount is threaded and the bolts go in from the bottom. If you can get the big six with the transmission, you might part it out and recoup some of your investment. The exhaust manifolds are especially hard to come by.
Mark

 

Also water pump, thermostat housing, intake manifold, oil pump...

 

I will see what is there. If the six is pretty complete, then I might just have to do it to payback some karma... this board has been pretty helpful to me when I don't have much too offer in return... Can I just assume that it is the big 6 since it is in a F6 (kinda what I did), or is there some number on it that can identify it for real.

 

Serial prefix should be 98MTH if it is the big six...and it should be.

 

F2/F3 u-joint has 1310 cups: C3AZ-4635-E (replaced B6TZ-4635-A).

F4/F6 u-joint is larger, has 1350 cups: B5TZ-4635-A

 

The big six is the M series. From the factory it has a head with 8MTH in the part number and an odd wide sump in the oil pan. Both could be swapped out for H series parts, but is unlikely. The definitive test is the block part number cast above the oil pan rail, I think near the generator. The block part number also would include an M in the prefix, but is usually covered by an inch or two of grunge.

 

Just got setup home. Hope this is what I am needing.

Big 6 is complete. Got it from fan to the short shaft. Amazingly, the Big 6 is loose and turns quite easily.

 

I just got the Big 6 to help people who might have a build or need parts. It is complete. It is not seized and will turn easily by hand. If anybody know of anybody who needs the whole thing or any parts, have them get ahold of me... I am just trying to return some of the Karma that people have given me on this board.

 

Where are you located? The M motors are rare, but not in high demand. I suspect more people would be interested in an M motor if they knew about them. I think it is a great upgrade for any Ford with a 226 engine in it.

 

I am in Denver area. I put a post in the classifieds - we will see if anybody needs anything.