Random Tech Questions

[BroncoJo]

79 bronco Dana 44 8 lug conversion. can I use 8 lug ttb stuff? I don't ever see solid axles at the picknpulls in said but I never really walk through the Chevy section much.

No, 8 lug ttb is funny

[Sparling]

http://www.ford-trucks.com/forums/71...-lug-swap.html

http://classicbroncos.com/forums/arc.../t-191980.html

These say it would work but it looks like ball joint spacing differs. I was hoping it would work so I could use the 2 piston calipers but I guess single piston chevy stuff is fine.

[stx4wheeler]

8 lug chevy stuff. Take stub, knuckle and everything else out from there.

[KrazyKarl02]

no, 8 lug ttb is funny

x2

[JB]

F150

I do not drive it much, but when I do, I have noticed the steering has started to fade. Especially if it hasnt been driven in a couple of days, it is much harder to turn the wheel until it gets warmed up, but even then, it feels sketchy, like it doesn'twant to return to center after a turn. Driving down the road, it tracks straight and it seems to respond adequately.

I assume it is either the pump or the rack. I am leaning towards the pump but it is not whining like a typically pump going out would. Both are original with 225k rough miles. Whatcha think?

Got to start gettting this thing ready for Colorado trip in Sept. THinking 35s and gears.

[TdmayfieldIV]

Have you looked for leaks on the rack?

[bburris]

That sounds like what my white truck did, but the pump was making some funny gurgling sounds as well. The dealership ended up replacing the pump and rack under warranty.

[JB]

Apartment life sucks. Haven't been able to check. I do not think it is though. Reservoir was on the MIN line, but not below. Wonder if the PS fluid is lifetime like the gear oil? ps fluid has nEver been changed

[Sparling]

I'm a physics retard so someone help me out here. The calculator I found for moment of inertia for two different tubes gives .205 for 1 3/4" .120 wall tube and .295 for 1 5/8" .318 wall tube. Do you just figure the 1 5/8" is about 43% stronger than the 1 3/4" tube?

[RCcola55]

What are you needing it for

[Sparling]

s&w cage vs. building one out of hrew.

[RCcola55]

S&w was 1 5/8 .120 when I bought mine. I don't think it's .318 wall

Edit: they offer .134 dom/hrew and 1 5/8 .083 4130cm

[BroncoJo]

I'm with Ryan wondering about the .318 wall thickness.


But what are the units of moi? Iirc max stress and deflect will equal something like ( x * length ^ 2 ) / ( y * moi ). Therefore higher moi will have less deflection.

* sent from ****ty cell phone with even ****ty signal

[Sparling]

I dunno where I got .318, Tommy was looking at them and I guess I thought I heard him say .318 wall.

This calculator says 1 5/8 inch tube has MOI of 0.176 and the 1 3/4 tube has a MOI of 0.205, so the 1 3/4 is ~15% stronger than the 1 5/8 tube. I have no idea about the units used, just what number the website tells me. Now that I have my **** straight, is a 15% strength difference that big of a deal on a full size slowmobile? I'm thinking the S&W cage would be easier to do even though you can get 10 sticks of HREW for the price it would be for the cage plus shipping. All you have to do is notch and weld the cage kit and maybe bend new down bars in the back.

[RCcola55]

Mine was 1 5/8 and prenotched, it went together in a day. The claw at Bryan iron couldn't crush it. Good test in my book