I've owned the f600 since 1995 and have always wanted to be able to drive on the freeway without holding up traffic and screaming the 272 y-block, feeling, like the engine was going to jump out of the hood. After a year and a half of saturdays I now have a 56 f600 with a 5.9 cummins diesel from a 94 f700, fuller fs5306 6sp main trans. from a 95 f750 + spicer 6041 aux. trans. swapped out the eaton 2sp 6.33-8.81 ratio for a dana 80 with a 3.31 ratio from a 99 freightliner mt45. I drove on the freeway, 130 miles round trip to visit my parents and pick up some firewood. Its was fun and a I got a few smiles as well. Its a little noisy inside the cab with the straight pipe but alot of fun rowin through the gears. cruise 62 @1800rpm with one more gear to go. (6th in main and direct in the aux.) shifting into the OD gear in the aux. trans. I will drop 500 rpm. I am still working out the little bugs but very happy with the conversion so far!

 

is that the same mt54 that road in my truck,if so he will ride in any thing...

 

Sweet set up ^_^

lol I'm still stuck with the 272...

 

Great news-I'm sure that's a good feeling after all those weekends. I don't know how to put all the right combos together like you have but it sounds like she's dialed in with those RPM at the speed, Smiles are like payday to me. I'm not on the road yet, but someday....

 

Rustyrelic you are a brave, brave man, ……..............should take at least a week to get rid of that dumb grin, huh?

 

I am glad it runs good.....and I drove mine yesterday,and people run when I pull in to the car-show.......it takes a country mile to park....haha
I am sure you will tinker with it and get it perfect......Glad to hear it!!!

 

Thanks for all the good words guys, ... the silly grin is still there everytime I crank it up and run through the gears.

 

Hey that's cool

I'm going to be turning about 2100 RPM at 60 I expect it to run pretty good.

There's nothing like a BIG TRUCK!!

 

That awesome I hope to get mine on the freeway one of these days. There is nothing like looking down through your windshield and seeing a big fat round hood with the steady bounce leaf springs bouncing you off your seat. do you have any pics of your setup.

 

yes pictures are in my gallery

 

even when they give you crap ya can't wipe the grin off that these ol' girls put on yer face !!!!!!!!!! i haven't driven mine since feburary { been trying to rewire , the discs etc... with a messed up schedule and personal front } and i still smile a big dumb grin when i think of it or look at her !!!!!!!!!!!!!!!!!!!!

 

sounds like a great truck to deive. Nice going

Jim G 1098

 

I took a very small roadtrip this week, combination city, highway, stop n go traffic 141 miles 7gal. of fuel = 20 mpg I'm very happy with that as its twice what I was getting with the 272 y-block ...note: truck weights 10k plus I was hauling 3/4 cord of firewood for half the trip... shifting, smiling, & listening to the straight pipe, what a day.