The Ford Barn

pickup · 07-01-2014, 08:14 PM

I am looking for information on swapping out my Dana 41 to a Dana 44 in a 1950 Ford F-1.

The truck has the original 8BA Flathead and 3 speed transmission. The Dana 41 has a 3.92 ratio rear end. The truck has 15" wheels. At 2500 RPM. its going 50 MPH in high gear.I found out that a 1957 thru 1972 F100 rear was the right width and would work with a few problems.

I called around to many junk yards in my home state of Georgia and asked if they had a dropuot rear end for a 57 to 72 F100 and all answers were no except one. It happens to be in my home town of Peachtree City. They want $250.00. I asked what the ratio was and he said it was a 3.25. I am now unsure if the 3.25 will be too high given what some people have said. I did check my tires and they are 88" around or 28" across. I guess the 28" is the number I need to use. of course third is direct.

I would appreciate more feedback on the 3.25 ratio before I pull the trigger on the purchase. I did check on Dana 41's and no one has one either junkyard or specialty drive train house has a 3.72 gear for a Dana 41

That brings me to the other delima. I will ask the junkyard to save the spring shackle bolts and the emergency brake cables but I understand the shock perches are different. The are smaller on the Dana 41 but the quesion if I get the shock perches off the Dana 44 which is still in the truck will they work with my 1950 F1 truck? Also I have heard that the drive line on my truck will be one inch to short. If I get the drive line out of the donor truck will it work?

07-01-2014, 08:14 PM	#1
pickup Junior Member Join Date: Jun 2014 Posts: 15	swapping a rear end in a 1950 F1 pickup I am looking for information on swapping out my Dana 41 to a Dana 44 in a 1950 Ford F-1. The truck has the original 8BA Flathead and 3 speed transmission. The Dana 41 has a 3.92 ratio rear end. The truck has 15" wheels. At 2500 RPM. its going 50 MPH in high gear.I found out that a 1957 thru 1972 F100 rear was the right width and would work with a few problems. I called around to many junk yards in my home state of Georgia and asked if they had a dropuot rear end for a 57 to 72 F100 and all answers were no except one. It happens to be in my home town of Peachtree City. They want $250.00. I asked what the ratio was and he said it was a 3.25. I am now unsure if the 3.25 will be too high given what some people have said. I did check my tires and they are 88" around or 28" across. I guess the 28" is the number I need to use. of course third is direct. I would appreciate more feedback on the 3.25 ratio before I pull the trigger on the purchase. I did check on Dana 41's and no one has one either junkyard or specialty drive train house has a 3.72 gear for a Dana 41 That brings me to the other delima. I will ask the junkyard to save the spring shackle bolts and the emergency brake cables but I understand the shock perches are different. The are smaller on the Dana 41 but the quesion if I get the shock perches off the Dana 44 which is still in the truck will they work with my 1950 F1 truck? Also I have heard that the drive line on my truck will be one inch to short. If I get the drive line out of the donor truck will it work?