Well as requested by a member on here I am going to post details of my diesel motor install in a 1975 f250 crew cab that was equipt with a 360 gas engine & 4 speed stick from the factory .
This install will be a 84 f250's international IDI 6.9L engine. I chose this truck because i purchased it and drove it for a year or 2 with the intentions of putting this engine in my 75 crew cab as the 360 was a gas hog and i wanted to get into diesels.. now this isnt a high dollar build or a show truck, but its a truck I plan on keeping for years and years.. and i wanted to keep it simple with a mechanical diesel non turbo-ed so if something went wrong i could easily fix it in the boonies.
The 84 f250 i purchased for 500$ it had a 4 speed stick, a dana 70 u rear end, a 6.9 diesel and that crap TTB front end... it had if i remember right close to 200,000 miles on it and ran like a top.
Here is a picture of my 75 crew cab when i got it years ago, the second picture is me with the front clip off of it getting ready to pull that 360 and sell it, the 3rd picture is the 360 itself was a good engine ran real nice, make a guy a good deal on it for 100$
So now came the creative part.. im no expert i know many will probably refer to me as a hack hehe for this type work. but its done and i drive it and its holding up so no complaints here.
I cut the original cross member out of the 75 and cut the rear of the frame from the 84 and welded it over the sides of the 75s front frame to give some more strength and box in the ends of the old cross member i cut out. plus if i ever wanted to remove this and go back to stock it wouldnt be so bad, just cut the main chunks out and grind the welds back down to original frame..
So then i proceeded to cut the 84 cross member out that held the diesel in the frame rails and it also supported the TTB from the bottom so this piece was massive, i removed quite a bit of the bottom of it to clear the dana 60 front axle pumpkin, wouldnt be a issue if you lifted it, but this trucks plenty high for me and i want to tow with it so a large lift isnt a option.
heres the pics of the pieces tacked on the sides and the crossmember laying in the middle for positioning. also a pic of cutting of the stock 84 piece
Ok now came the hydro clutch mods for the 84s bell housing to go in the 75 since the 84 was hydro and the 75 was linkage.
I drilled a hole in the fire wall for the master cylinder and located it where i thought it should be by the pedal, then i welded the nub from the 84 pedal to the 75 so it would have the mount for the rod and it worked like a charm!, had to reinforce the firewall just incase with some old rv bumper steel i had laying around.
So now i went back to the engine and pulled it, dont have a picture, then i finish welded all the parts of the crossmember for the engine and routed the hydro clutch line and portected it in spots that i was concerned with it rubbing.. dropped the engine back in, bolted it all up.
heres the pics of it welded, and then of the finished truck ready to roll
and here she is the following summer on a fishing trip with a friend form outa state thats him in the picture, i also swapped in at the time the dana 70u rear end so i have 355 gearing.. plenty of power and around 15mpg city and 20 mpg highway big difference from the 360, it loves pushing 35" tires even..
i love it, and it does me find for now.. putting another in a 78 bronco now too
the 2nd picture is a picture of it this year..
thanks for reading my story. dont be afraid to send me some reps!
thanks for writing this up, I am doing one on a 75 f-250 4x4 in my garage right now, just about got it all stripped out. I'm going to use a zf 5 speed though with mine. I never thought of using the crossmember out of the newer truck, I'm going to try that, but I'm not going to cut the original crossmember, I'm going to try and add it behind it. I'm using a 7.3 non turbo from an 88 f-superduty.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.