Daddy;
It's got a round cover.
Bill;
The wiring is per the instructions (including relay, governor, solenoid and kickdown switch). The only change I made was to put a switch in line between the kickdown switch and the solenoid. The change did not effect the "takeoff" problem. It is just hard to get rolling in 1st gear.
Idsky;
Thanks for the input. The truck runs great on the road. It will run 55mph at 2000rpm in overdrive. It will run 70mph at around 2600rpm. It does ok on the hills. It's relatively flat here in MO so I haven't run any real big hills.
The truck that my new tranny came from had a V8 (283) in it. Most likely it has the 2.5X 1st gear. I'd like to have the 2.85 1st gear.
When I come through the security gate to get to my house, I have to stop at the gate that is on an incline. When pulling away from the gate, I have to walk a fine line between revving the truck and easing the clutch out or I get a violent bucking in the engine and trans. I have a real hard time getting the truck up onto some wheel ramps that I have. There isn't any problem once the truck gets rolling, it's just getting it to move.
I was hoping to be able to find a Saginaw trans of similar vintage that came out of a 6 cylinder truck. I thought I could just take the 1st gear out of that and put into mine. Sounds like that is not an option.
Is there something I can do with clutch selection to make this better? I also need to coax as much power as possible out of my 250.
Bottom line is I like the trans. It makes for a good overall driving experience. My concern is how the truck will perform if I have it loaded or am towing something. If I can't change the 1st gear, what can I do to make the situation better??