birdcage position??? need help asap!!!

If spring perches are on the bird cages they will need to be in a location as not to cam much as to the lifting or lowering of the car when rolled or hiked! Use a jack to get running ride heights to show what is happening during movement! Bar lengths and mounting holes vary from car to car as to set-ups and chassis designs! A mid-range of cam movement should be noted to index of movement as to leverage and bar length travel at the bird cages! A sweep of motion should be close to straight up in mid range! Watch out for added or lessened steer in this process as bar lengths and angles change indexing movement of the axle. Raising the top bar if longer at the bird cage will lesson cage twist if yours has more than one hole for positioning! Most are leaned forward at the top on the rt. side with a longer bar and more angle to move it backwards as shorter lowers change quicker with less angle applied when rolled! Check at static ride heights also to insure position changes to a open or closed rear steer or lead! The left if hiking can lean to the rear at the top greatly at static ride heights! No easy answers for these settings unless by chassis designer! Testing by jacking is the only way to see what is happening during the ride height changes! Pinion angles, drive-shafts, spring perch movement, and steer must be checked in the indexing process! A guess would be 2-4 degrees forward right side top and 8-12 left top to the rear depending on hiking and bar location and length!

Watching them move is the only way I know as they go there own way when rolled by bar position, length, and angle, hiked or lifting evenly! Getting in the middle at mid travel is sometimes half travel of a one direction movement or a to and fro as it moves in the lift and roll. Watch the travel and try to keep any change close to the 6-12 range during there individual movements! Are you springs floating on these perches? Movement of the perches changes spring locations and ride heights when moving if so! Jack and change jack location to see what is happening! These bar changes and indexing can add or loose steer also! It may have to go back to even bar locations and leaned left to get them back in order to have a starting point if one bar length or position is different than designed! The left spring perch may raise a bit or the right lower when lifted or hiked but this should be a small change! I have had to drill and tap extra holes for my type of set-up to get a negative left lower bar angle at static as not to over cam are just keep on hiking and top out no matter what with original settings bars and springs! Once you get them to not move so much then re adjust pinion and lead in the static steer! If you know your chassis builder, you may get some info on having the correct lengths for locations on the bars! Some designs do hike and use a softer lt. rear spring as not to lift so much! Most try to run extreme angles when less is needed if correct with design! Wish I had quick fix for you! The rule of thumb is put it where moves the least amount either way from centered to the bar angles!

Yep! Some move more than others and need more angle to stay with in reason not pertaining to 12 or 6 but centering more to bar angles when moved! You can make left or right steer or hike or lower spring perches with cam and leverage of holes at the bird cages! Watch all three things in movement ! Good luck on your next run!