Front frame horn height

[TheBiologist]

I am looking for a height measurement for the front frame horns and even the front body mount.

My truck is a 76 sport with a 3.5 lift and 33's. Thanks in advance.

 

[Hotrodjohn]

the height would depend on tires, suspension, tire pressure, etc. The front frame horns run straight off the frame rails. The front body mounts are about a 1/16 higher and parallel to top of frame rails.

 

[DirtDonk]

And the weight of the truck too.
Even though you specified the listed tire diameter, you need to measure from the center of the hub to the ground, so that you will have something to compare to, when anyone giving you the same measurement chimes in.
Tires vary wildly in actual diameter compared to the rated size. Even suspension lifts vary, depending on brand, design and age.

So to get a frame height, you need to also measure between the top of the axle to the bottom of the frame rail to get an actual suspension lift height. And from the center of the hub to the ground to get an actual tire height.
Then and only then are you going to know what someone else's frame height is compared to yours.

And are your engine and body mounted to the frame? That's going to skew the readings of course. Even having a 351 vs a 289 or 302 or six cylinder will do that too.
Your '76 would have been 302, but we're only assuming that's what's still in there after all these years.

Good luck though! Just let us know the specifics and someone will have what you need.
I've got an old 3.5" lift, but no engine, so won't be of much use even with my small-ish 33's.

Paul

 

[nvrstuk]

You should be very close to 28 1/2" at the bottom of the frame horn with a 3 1/2" lift with 37" tires...with 35"s it would be 1 1/2" less, etc... 33"s should be real close to 26 1/2" but like Paul and others have and will say, it will vary a LOT depending on tire psi, brand of tire, type of spring, weight of Bronco, front winch, HD bumper...list goes on forever...

Every Bronco will be a bit different... really!

I'm running 40" MTR's (true 40" OD) and with 6" of uptravel-- from the frame horn to the ground with winch, HD bumper nothing left stock on the rig it sits lower than most rigs with 3 1/2" of lift and 37"s...

What are you wanting to compare on your rig since you know it has 33"s and a 3 1/2" lift? Curious is all...

 

[TheBiologist]

Thanks guys!

Dirtdonk it actually has a 6.0l GM LS drivetrain now. Yes the body is on.

Nvrstuk my front horns are 3/4" difference in the heights so I wanted to figure out which is tweeked.

 

[nvrstuk]

Does your entire rig lean to one side or is it just one of the frame horns...??? Obvious bend in one of them? Compare yours to another Broncos to see...

If it's not a frame horn...

IF the entire rig leans, you have the dreaded Bronco lean... lol...seriously, if it's leaning to one side, go to WildHorses tech section and read the write up I did back in about '98 when we (old guys in the Bronco community) were installing the new-fangled soft spring, long travel suspension systems that had just been introduced the past few years...

Many of us installed the springs and our Broncos for the first time ever (important point) started to lean to one side or the other. Tons of ideas for why but back then all we'd changed was our springs and all our rigs were level before the spring swap...

Check out the tech write up...hope you figure it out...

 

[TheBiologist]

No it does not lean, the front frame horns are tweeked. It was wrecked years ago, and it appears that the steering box was ripped out of the frame and repaired. I think when I cut the front cross member the tension in the frame was released. Just looking for a good baseline.

 

[nvrstuk]

Any local Broncos to compare?

 

[Steve83]

Click this & read the caption:


(phone app link)

 

[TheBiologist]

Looks like the drivers side is measuring 28 inches to the top of the horn and passenger is 28 1/2 inches, so I think the drivers side was pulled down.

 

[Steve83]

Read this & the NEXT several captions:


(phone app link)

 

[TheBiologist]

Did you use a torch at anytime to make it easier to bend?

 

[Steve83]

No, just the equipment you see in the pics. Maybe a small BP hammer or big crescent wrench for some fine adjustments.