Bagger project

[firebird77clone]

I'm considering taking on an unfinished S10 bagger project.
I think they should have created a triangular four link, but they have everything perpendicular. As it sits, it needs a panhard bar.

I'd like to cut the brackets off, and triangulate the configuration, but I don't know how to set the angles. I don't even remember the down angle for the input shaff of the differential.

[jerry clayton]

ladder bars the length of the driveshaft will keep the u-joints good at the back and a double cardan joint at the front

Then panhard bar -------

[firebird77clone]

Double cardan you say.

I'm not familiar with the critter.

[34_40]

Google Constant Velocity Joint..

[firebird77clone]

C-V joint. Ok, but why?

I was kind of fired up about doing the triangular set up, if I take the project. I could have templates the nomad, but it's sold and gone. (It had a factory triangulated four link)

[jerry clayton]

The constant yelocity joint------a u-joint changes shft speed as it rotates, this is what causes driveline vibration when the u joints are at either odd or too much of an angle-
The cardan constant velocity joints solve/correct that----first ones I saw were on my 1970 Lincoln ------

every airbag install that I have seen has so much height travel that the short arms (4 link) rotate the rear housing so much that u joint/shaft angles are excessive and you get drive line vibration----

[firebird77clone]

I found some specs
Upper bars angled 35*-45*.
Upper bars = 70%-80% length of lower
Lower bar no less than 14". (20"-24")
@ ride height, lower bars angle up 1/2* and upper bars angle down 6*

So, questions:
I seem to recall input shaft angles down 4*?
Locating arms on rear end: should upper bars stagger relative to location of lower bars? Seems to me that mechanically speaking it would be stronger if top brackets were exactly over bottom brackets.
Top bars point forward or back?