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Great info! Thanks for your time and effort - I learned alot. I don't own a high boy but maybe some day. I will send this to my son so he will understand why he should not refer to our 78 F150 as a high boy.
I screwed up ,my serial# f26yca3041 not y26 and the frame on the passenger side next to the engine crossmember has the same number stamped on the top rail flange it has the 33 1/2 in rail,sorry about that.Do i have a hi-boy or is this thing a piece together? Thanks for the help you and the rest of the members are a wealth of knowledge Thank you
You're missing a digit
the Vin # is 11 characters long
you posted 10
I'm going to assume you left off one of the lat 5 numbers since the first five..jive
how difficult would a swap be for 1972 highboy dana 60's and leaf springs. and the mounts on the frame in the front. to be put under a 1976 f150 4x4 with coil spring dana 44.
new to this site you seem to know youre stuff I have a 74? highboy chassis would like to put my 76 super camper special cab & bed on , cab no problem bed has set back axle any idea how bed can be made to fit? Can rear axle be moved enough ? doesn't look like it to me but if it can would you or anyone know ? If it's known doe's someone have a pic. PLEASE ! thank you
Ditto on the thanks for all the info and ND to clear up some differences. I have a 77.5/lowboy with a married NO-205 xfer case and hate it when someone has a
F150 "Highboy" for sale on the craigslist, get smart people join FTE and read this thread!
It a depends on the chassis, is it early or a late model? And is your xfer case connected to your transmission, meaning directly bolted together, if it is I would say no HighBoy.
Although Highboys were taller than other trucks, the suspension was not lifted. The front suspension did not have a lift block, and was taller to accommodate the divorced transfer case. The rear suspension had a block between the axle and leaf springs to lift the rear of the truck,
So if i tried to take the springs from a high boy and put the on my 79 f-350 in an attempt it lift it, only the rear would get lifted?
I noticed that you say that the hi-boy frames are only 4x4 models... i'm not arguing this..... i am currently converting my 77 f250 cc 2x4 into a 4x4 and my 2x4 frame has the exact frame as a 4x4 with the exception of: the front crossmember (where the leafs are mounted, compared to the 2x4 component mounting crossmember), as well as the crossmember where the transfercase is mounted, where my crossmember held a hanger bearing. Maybe being a crewcab, they didn't make two different frame rails, because mine had all the holes in the front of the frame to bold that front crosmember right in place. i have both a 77 4x4 F250 RC and 77 2x4 F250 CC (now a 4x4...)... just food for thought. excellent post!!! great info!
Although Highboys were taller than other trucks, the suspension was not lifted. The front suspension did not have a lift block, and was taller to accommodate the divorced transfer case. The rear suspension had a block between the axle and leaf springs to lift the rear of the truck,
So if i tried to take the springs from a high boy and put the on my 79 f-350 in an attempt it lift it, only the rear would get lifted?
The hi-boy front springs are arched instead of flat like the lowboys...i have heard of people swaping in earlier springs to get there front up, but as far as ther rear, the spring mounts on the frame are different. the hi-boy mounts are for 2 1/4" spings and are short (don't hang below the frame) and the lo-boys are for 3" springs and hang below the frame.
I noticed that you say that the hi-boy frames are only 4x4 models... i'm not arguing this..... i am currently converting my 77 f250 cc 2x4 into a 4x4 and my 2x4 frame has the exact frame as a 4x4 with the exception of: the front crossmember (where the leafs are mounted, compared to the 2x4 component mounting crossmember), as well as the crossmember where the transfercase is mounted, where my crossmember held a hanger bearing. Maybe being a crewcab, they didn't make two different frame rails, because mine had all the holes in the front of the frame to bold that front crosmember right in place. i have both a 77 4x4 F250 RC and 77 2x4 F250 CC (now a 4x4...)... just food for thought. excellent post!!! great info!
Hi 77_crew, best of luck with the conversion! I think the difference is that there are non-highboy 4x4's, which may have the same frame as a 4x2, though with a small exception (the absence of the front crossmember), the modified highboy frame also occurred on F-350's, probably both 4x2 and 4x4.
I'm looking at what is listed as a 1977 F250 Highboy for sale and would like to just make sure that it is indeed a highboy. The VIN is: F26HCY00775. It has a 351 engine with a 4 speed transmission. It's a really sharp looking truck and i've wanted one of these for a long time.
After looking though this post i feel confident that it is a Highboy but if any of the knowledgeable people can confirm this I would greatly appreciate it. Thanks in advance!!
ok iv read the artical and its has very good info but on the leaf sping you say there just arched and its not a lift well i own a 1974 ford highboy and my springs are the same as a a 4 inch kit for my truck but the kit had more leafs in it and the blocks are the same to. im just wondering if some one knows more than me can give me an answer
It's not considered a "lift" per se because that's a highboys factory ride height, it's not an aftermarket lift kit, it rolled off the assembly line with a chassis that rode approximately 4" higher.
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