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High Boy / Low Boy ?

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Old 02-08-2014, 05:26 PM
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High Boy / Low Boy ?

Been trolling the sight now for a bit and have seen the terms "High Boy" and "Low Boy" used to describe some trucks. Yet I am clueless as to what the difference is. Could someone please throw me a bone as to what makes them unique from one another.
Thanks in advance.
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Old 02-08-2014, 05:43 PM
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A "highboy" refers to a 73-77.5 f250 4x4, where as a "lowboy" refers to the 77.5-79 f250 4x4's. the highboys from the factory actually sit roughly 4 inches higher then the later model f250's. hence the term. Other differences in include 2.5" inch front springs that are mounted to a crossmember in the front of the frame, low pinion front big hub front axles, and divorced transfer cases.
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Old 02-08-2014, 05:45 PM
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Quote:
Originally Posted by BogTroll View Post
Been trolling the sight now for a bit and have seen the terms "High Boy" and "Low Boy" used to describe some trucks. Yet I am clueless as to what the difference is. Could someone please throw me a bone as to what makes them unique from one another.
Thanks in advance.
1967 to 1977.5 F-250 4x4 is a Highboy although Ford never used that term. Here's a link:https://www.ford-trucks.com/forums/9...mpilation.html
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Old 02-08-2014, 08:21 PM
Westcoast Highboy Westcoast Highboy is offline
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The highboy is simply the most awesome truck Ford ever built

They also only came with 4.10 gears, the fuel tank was located behind the seat and they had a narrower frame that regular ford pick-ups.
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Old 02-09-2014, 02:35 AM
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All good info, just go to the link to get it ALL.

Quote:
Originally Posted by k_brenner View Post
Other differences in include 2.5" inch front springs
Pretty sure you are wrong, the 73-79 front springs are all 3" wide, its the rear that are 2.5.....in the 67-77 range I do believe.
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Old 02-09-2014, 05:12 AM
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Originally Posted by 77&79F250 View Post
All good info, just go to the link to get it ALL.



Pretty sure you are wrong, the 73-79 front springs are all 3" wide, its the rear that are 2.5.....in the 67-77 range I do believe.
Front is 5-6 leafs depending on GVW at 3" wide; rear is 9 leafs at 2 1/4" wide.
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Old 02-09-2014, 05:16 AM
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Yes I agree for the front 5 to 6 leafs 3" for a HB and 2 leafs 3" for a 78/79 lowboy.

2 1/4, 2 1/2.... at least I was close? I was thinking they we not 2 1/2, but was not sure, thanks for the correction.
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Old 02-09-2014, 05:18 AM
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At least we narrowed it down.

2.5" front > 2.5" rear > 2.25" rear.

Problem solving.
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Old 02-09-2014, 11:06 AM
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Quote:
Originally Posted by Westcoast Highboy View Post
They also only came with 4.10 gears,
Are you sure about that?
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Old 02-09-2014, 11:16 AM
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Originally Posted by trozei View Post
rear is 9 leafs at 2 1/4" wide.
Or 10 leaves.
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Old 02-09-2014, 11:34 AM
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High Boy: 1967/76 F250 4WD - 1977 F250 4WD before serial number Y20,001 (February 1977).

Front leaf springs: 3" wide, 26" > > eye bolt < < 27"

Rear leaf springs: 2 1/4" wide, 26" > > eye bolt < < 26"

C7TZ-5560-F 6 leaf rear spring standard equipment, C7TZ-5560-G 9 leaf rear spring optional. C9TZ-5588-A single (1) leaf auxillary spring optional for both.

Front driving axle ratios (except 1976/77 Crew Cab): 3.54 & 4.09 / 1976/77 Crew Cab: 4.10.
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Old 02-09-2014, 01:36 PM
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Quote:
Originally Posted by 77&79F250 View Post
All good info, just go to the link to get it ALL.



Pretty sure you are wrong, the 73-79 front springs are all 3" wide, its the rear that are 2.5.....in the 67-77 range I do believe.
You're right, I was thinking rears...
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Old 02-09-2014, 03:53 PM
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ND, could you have ordered 4.56's or 4.88's?
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Old 02-09-2014, 10:42 PM
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It's all good k_b.....at least we know.
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Old 02-10-2014, 01:44 AM
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Quote:
Originally Posted by 1972RedNeck View Post
ND, could you have ordered 4.56's or 4.88's?
Neither ratio is listed for front driving axles.
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