I have a 94 f250 4x4,7.5 and a e40d with 4 10 gears,I can get both front and rear ends out of a new super duty 98 or 99,for 500 bucks with 3 73 gears,does anybody know what major issues I might have,I was told I will need new 8 lug metric rims.Thank You for any help you give.

 

Hopefully someone who knows will answer. Here are some possible "gotchas" that may or may not be significant.

TTB to solid axle swap. Not overwhelming by any means, but in addition to the '94 to '99 issues you'll be doing a solid-axle-swap. Front springs and track bar are the main things that come to mind (don't re-use the TTB springs, they're too stiff).

Spring spacing? I don't know if the spring pads are the same distance apart. The rear wouldn't be a huge deal to cut of and weld new on (if needed). Front might be a little more challenging?

Track bar mounting? The '94 F-250 wouldn't have one, but a '94 F-350 would, and the '99 would. Any challenges to getting one mounted between a '94 F-250 frame and a '99 axle?

VSS? It's in the rear axle of the '94. Maybe the same place on the '99? And if so, is it just plug-and-play, or will you need to do anything to get the '99 axle to tell the '94 computer how fast it's going?

U-joints? Don't know if the '94 and '99 axles have the same yokes. (Not that big a deal to get a driveshaft modified if it comes to that)


And yes, you will need wheels with a different lug pattern. And for what it's worth, I'm pretty sure there were no '98 SuperDuties. Ford jumped from the '97 old body style to the '99 SuperDuty

 

I have done a front axle swap before on my 93 I had,its al the new stuff so to speak.The salvage yard wants more for a f350 front end,as they said we have all kinds of the late 90s and early 2000s,the early ones are getting ard to come by.thank you for the info Nothing Speical ,

 

Why don't you want the 4 10 gears? Most people want to change to the 4 10 to be able to tow etc etc.

 

Binkowski,She does not haul a 5th no more.just brush,a few bags of food and a alasken malute.I cruse the interstate a few times a month,would like to go a little faster then 72-74 without twisting the hell out of a 7.5.the engine is at about 2400rpm on the stock tach,at 12mpg.figure the 373 should raise speed at little and keep rpm at a good range,made a little more mpg.for what I do with it the gears will be fine.thank you for imput