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this. Static vehicle weight on suspension components. So take the weight off of the jack.

the fundamental physics of a spring, damper, mass system. As stiffness increases displacements decrease (brake dive and body roll) but forces increase (ride harshness transferred to body). The converse is also true, as stiffness decreases displacements increase and forces decrease. The oem...

this is plenty good enough for me. Unless I am installing 74weld portal brake caliper brackets.

the Panhard bar is designed to be a “rigid” link. It can only carry axial loads along its line of action (from mount to mount). The size of the oem bar is plenty stiff along its axis. many of the bars have a slight bend at the diff for extra clearance. This weakens the bar by causing a stress...

Bigmeats got me curious about real numbers for the 6G platform and “roll center”. I have attached a simple analysis to illustrate some critical behaviors. First a word about “Roll Center”. This is merely an engineering construct in order to simplify analysis. The roll center is not a single...

Lots of threads on here about, “I have added weight and now my ride height has dropped. What should I do, spring preload or strut spacer” so I thought I would post this. Some objectives to achieve with a suspension modification may be, in no particular order; 1) clearance at ride height...

Absolutely. Just considering rear axle in 2 dimensions. If roll is defined as the angular motion between the body and the axle, then roll stiffness will dictate roll angles. Assuming vehicle body is rigid, another story for the open top non-boxed Bronco body, but assuming this nonetheless. Also...

awesome. I wish that was my backyard. You guys are spoiled.

Some objectives to achieve with a suspension modification may be, in no particular order; 1) clearance at ride height 2) mid shock stroke at ride height 3) ride quality 4) wheel travel In order to achieve each of these, proper spring rates are required and knowledge of static weight at...

I would be curious to peak at the damping curves, shock force vs piston velocity.

Nice reference on how Panhard affects handling. A good read. Some thoughts on location of Panhard bar and roll center, for those that are interested. The Oem Panhard is long and symmetrically mounted (both frame and axle mount locations are same distance from vehicle centerline). For static...

Don’t take this the wrong way. As usual everything you said is absolutely notionally correct. Party on. I am just gonna nerd out a bit on the details for those that may care. Spring stiffness doesn’t change with a “preload collar”. Spring stiffness is an inherent property of the spring geometry...

On my Bronco with the 6100 bills that have a compressed length of 17.11”, there is 7” of clearance between Panhard bar axle mount and frame at ride height. I have the oem bump stop and there is only 2.5” of jounce available before bump stop is engaged. So at most I can get 3” of full...

@Fordified1 has a track bar relocation bracket and the eibach struts. It seems he hasn’t had any issues. The 18” may be conservative. Unless heavily loaded or jumping you may not be able to bottom out shocks in full compression. Also bump stop will play a role. I would ask rickjock how they came...

These are the specs you should consider when changing UCA. That way you know exactly what kind of alignment you will achieve. Not everyone provides this. This is from Tom’s offroad posted above. Technical Specs Designed for lift heights of 2-4" Billet 6061 T6 aluminium Wheel alignment target...

The issue is compressed length of the coilovers. For example, at some limit the relocation bracket will contact the frame during jounce. Not sure what the minimum compressed length for interference is with that bracket but that is what you need to know. Then make sure your coilover doesn’t...

Don’t need an adjustable track bar if it is level. The track bar forces the axle to move left-right as the axle moves up and down since the motion is confined to an arc with about a 44” radius ( track bar length). As lift is added to the rear the track bar angle increases pushing the axle left...

not all ford service sucks. @Ducati1098 😁

I replaced my diff cover and was able to reuse the two brake line clips. I don’t want to discourage anyone from going the route carbonsteel generously provided. If you are careful it is possible to reuse the clips. I am probably just way to lazy and cheap.

If you are wondering how offset affects both scrub radius and mechanical trail then here are some plots. Otherwise just ignore.