Thanks John.  Looks as though unless I luck onto the bell of an optioned truck I will stay with the t-98 if the donar diffs agree gearing wise.

From what I've been told, the New Process was an option in 1964 (maybe 63 also). It requires a special bellhousing.

The bellhousing in the picture you posted is for a 3-speed truck. The T-98 4-speed used a different bell. The NP is another style.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

There are at least two different patterns for the trucks.


Lawrenceville, GA

Glanced at the t-98 bolt layout while under the black rat today, & noticed that the NP 435 that I picked up has the 4 bolts in a alomost the same  layout  on each side.  The t-98 has two that are close together top to bottom on the passenger side.

Looks almost like the bell would need the same mods as it would for a t-5.   Hardly worth it, as I would rather have the t-5 if I am going to mod the bell.

Can anyone specify if there are multiple truck bells with different bolt patters?

This pic from John's site is of a different bell than the one I have in the truck.  I have a second one laying around that I need to verify if it is like the one pictured here or if it is like the one currently on the f-250 black rat.

Btw, here's some pics of the trucks in the garage.  Thank god for wheel dollys, which allow me to roll the rear of the stake bed withing a 1/4" of the wall to make more room to park the second truck and still do small jobs!

 

Didn't post before because I'm not familiar w/ the 435,,,the large truck bells have two bolt patterns,,,,,older NP's shift rails interfere w/ the bell. When I got my 600 the bell had been torched for clearance,,,it had cracked & had to replace it. now have a Clark OD 5 speed.

A little help here fellas.

Will a NP 435 4 speed truck trans bolt up to a 63 truck bell?