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After doing some research and pricing all the transmission options here is what I'm thinking of doing i wanna keep the 300 not planning on any other motor like the simplecity of the motor I'm thinking a close ratio t19 with a 4.02 first gear and somewhere between 3.00-3-55 rear its going to be a Sunday fun drive truck if I wanna save gas I will drive my s10 eventually I wanna get a small camper 5000lb or less gvwr won't be hauled more then once or twice a year other then that only thing I will be hauling is some fishing poles and my dog any suggestions would be great on the build I am really enjoying fixing up the old ford just got new rims and tires pacer bullet holes almost got Everything for power brakes that's next on the list
Sounds like a good plan. The T19 should do you well even if you don't change your rear gears. With a non-O/D fourth gear you will still have the range to hit 70-75 on the highway just fine. If you want a low first gear for towing then get 3.08 or 3.55 gears with the T19 or just get a granny gear transmission like the T18/NP435. The T19 in my opinion is your best bet though. A ZF is a lot of work and money, and keeping a mechanical clutch in there is cool and will last you a long time if you take care of it.
That's what I was thinking get the t19 first then after a while I could decide on what gears and posi or locker to install in my rear end because rear has some slop in it so I'm planning on rebuild eventually anyway
If you want to see what the t19 will be like at speed with the trans you have now, get on the freeway and leave your SROD in 3rd gear. That is what you are going to get. 3rd gear in the SROD is 1 to 1, 4th gear in the t19 or any of the other 4 speeds is 1 to 1.
I don't use 4th anyway boggs like it can't hardly go unless I'm going 75 or so and before you say something else is wrong I have a new carb new coil plugs wires distributor cap rotor air filter fuel filter u name it I done it other then all out performance parts offy intake carb headers ECT I wanna do later but not now