Highboy question?
#1
Highboy question?
I have a 74 f250 that i did the power steering swap on 2 weeks ago with a 78 steering box works great! But today i bought a 77 f250 for parts that has the power assist on it that works and it has the Dana 60 front and rear and has front disk brakes can i use the front axle out of the 77 in my 74? or would u guys use the 74 body and put it on the 77?
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#8
HD D44's had the 8 lug hubs and I'm not 100% sure but I think the hubs were slightly larger on the 8 lug than the 5 lug but I couldn't tell you... I'm at work and can't measure em.
High or low pinion refers to where the driveshaft enters the differential at. Low pinions enter the bottom of the pumpkin, closer to the ground. High pinion enter towards the top of the pumpkin, closer to the chassis. They look quite different.
You may run into front axle issues if you try to use the low pinion axle with a married transfer case.
Additionally, the high boys had narrower frames than the non highboy trucks so the spring perches will not be in the correct locations for a non highboy....
Does this answer your questions? I wasn't sure exactly what youre aiming to do.
High or low pinion refers to where the driveshaft enters the differential at. Low pinions enter the bottom of the pumpkin, closer to the ground. High pinion enter towards the top of the pumpkin, closer to the chassis. They look quite different.
You may run into front axle issues if you try to use the low pinion axle with a married transfer case.
Additionally, the high boys had narrower frames than the non highboy trucks so the spring perches will not be in the correct locations for a non highboy....
Does this answer your questions? I wasn't sure exactly what youre aiming to do.
#9
Frame width for all 73 to 79 f series trucks were identical in the front. Spring perch spacing is the same for all of these front axles. Only the 73 to 77 (actually earlier too) F250's had a narrower rear section of frame, not the front though.
As far as a large hub, this is probably the number one biggest mistake made when folks get excited about finding a Dana 60.
Large external hubs were found in low pinion closed and open knuckle dana 44's:
That is a Dana 44.
Using hub diameter as an identifier can be a little mis leading, and many have made this small error.
As far as a large hub, this is probably the number one biggest mistake made when folks get excited about finding a Dana 60.
Large external hubs were found in low pinion closed and open knuckle dana 44's:
That is a Dana 44.
Using hub diameter as an identifier can be a little mis leading, and many have made this small error.
#10
They both have the divorced transfer cases so i am guessing that the 77 is the low pinion angle it was built in 1/77 and i think that they swithed in march of 77 but not sure? the axle code on the door is 24 j but dont know if there is a place on this site do do axle search with these numbers that are on the door or not i will try to get some pics loaded so it will help so u guys understand what i am trying get guestions answered thanks in advance.
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Thank you for correcting me about the front frame width. Brain fart.
If they have divorced transfer cases than they came from the factory with low pinion axles. I'm pretty sure about that. But as for whats under them now, there is no sayin for sure without double checking. A lot of people swap parts on these older trucks. 1/77 and divorced transfer case should equal high boy.
My 77 lowboy has the HD44 and looks just like the one '78 posted, with red *****.
Yes for disk brakes keep the proportioning valve off the vehicle donating the disks.
If they have divorced transfer cases than they came from the factory with low pinion axles. I'm pretty sure about that. But as for whats under them now, there is no sayin for sure without double checking. A lot of people swap parts on these older trucks. 1/77 and divorced transfer case should equal high boy.
My 77 lowboy has the HD44 and looks just like the one '78 posted, with red *****.
Yes for disk brakes keep the proportioning valve off the vehicle donating the disks.
#13
Oh and by the way, I got a rear dana70 off a 79 F350 2wd and it is the same width as the high boy frames in the rear. Just a random fact.
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