ID transmission gears
 

Looks like 39 or later gears on top with the later synchros. The bottom gears came out of my 36 transmission.

Are they 36 gears? Are the gears inter-changeable with the top ones?

http://i371.photobucket.com/albums/o...uber/gears.jpg

Re: ID transmission gears
 

NOTHING interchanges... Except the ball bearings... And... the case... That is, the whole gearsets could go in either case... Whew!!
Karl

Re: ID transmission gears
 

The gears in top picture look like '39 to '48 to me and the gears in bottom picture appear to be '36 to '38 (maybe including early '39 std). Charlie ny or Mac Van Pelt are probably two of the most knowledgeable folks here on these early Ford gears.

Re: ID transmission gears
 

Are the cluster and reverse the same?

Re: ID transmission gears
 

mrtexas,
The cluster, rev idler and 1st and rev slider will interchange. Be very careful
however and determine the number of teeth on the big gear of the cluster. The
later gear sets came in..shall we say...close ratio and wide ratio. The close ratio had
28 teeth on the cluster and 16 teeth on the input shaft gear. The wide ratio had 29
teeth on the cluster and 15 on the input shaft gear. The wide ratio was introduced
after WWII I think but in 70 or so years and many hands you never know what's in a
trans. If possible try to keep gear sets together and do your absolute best to not
mix after market gears with Ford gears. Jack Evans and I had fine old time with
mixed gears sometime back.
Charlie ny

Re: ID transmission gears
 

Clusters actually interchange '36 through '50, with allowances for different bearings within and of course tooth counts. From memory, I think the wide was first used on a very rare application, the heavy duty v860 trans that used big gearset...will have to go find the book on that.

Re: ID transmission gears
 

mrtexas,
One other item to remember during your overhaul.......take a real hard
look at the rear thrust face inside your case ( the face that the cluster gear
thrusts against ). Occasionally this face is chewed up to a lesser or greater degree.
Even slight roughness can cause you heart aches down the road as the thrust
washer will just get torn up running against a messy face. As Fred said yesterday
there are lots of good cases out there.
Charlie ny

Re: ID transmission gears
 

Also, the '28-48 parts manual has good charts showing which gears are compatible with what and gear identification information. There are plenty of minor variations to work out. You will need a good light, a striagtedge, and lots of coffee to work through the chart!

Re: ID transmission gears
 

Mac Van Pelt's book would be a very good resource for you.

Re: ID transmission gears
 

Yes...it gets a lot of information together in an organized way. With Ford books, you have to pull together material from several sources.

Re: ID transmission gears
 

The 36 gearbox used a one year only 6 tooth spline low/reverse gear slider and matching main shaft. Both low gears in the picture appear to be the 37-50 type with 16 tooth slider splines. I believe the 29/15 gears were introduced in 1941 and were standard issue in v-8 pickups.