You should be able to raise the pinion angle without sacrificing wheelbase...the Upper arms control that. Lower arms primarily set the axles fore/aft position, the uppers control rotation, and a trackbar controls the side to side motion. Now...In @jjvw's case, he's running triangulated links, so he doesn't HAVE a trackbar, but his pinion angle is still set with the upper control arms.
The upper and lower arms roll the pinion up or down. The upper and lower arms also extend to recover the lost wheelbase. It all happens at the same time. As with so many things, the amount of recovered wheelbase is largely influenced by the bump stop extension, along with making sure everything clears when cycling the suspension with the tires on. It's a juggling act.You should be able to raise the pinion angle without sacrificing wheelbase...the Upper arms control that. Lower arms primarily set the axles fore/aft position, the uppers control rotation, and a trackbar controls the side to side motion. Now...In @jjvw's case, he's running triangulated links, so he doesn't HAVE a trackbar, but his pinion angle is still set with the upper control arms.
I've been wanting to run this data through Excel, and that was just what I needed. Thanks @jjvw!Here is everything in order of frame height, so far. The trends are interesting.
I've been wanting to run this data through Excel, and that was just what I needed. Thanks @jjvw!
Here's what the data looks like so far, if you'll excuse a little quick and dirty rounding and interpolation where the responses didn't provide exact data. Trend lines are suspect, but they make good visuals.
View attachment 70274View attachment 70275
Here's a bonus comparison that we can get from the data:
View attachment 70276
Not sure if that's useful, other than showing the breadth of the distribution.
Looking at the last chart I'm not on there. Edit: It's probably because you used the summery from jjvw which dropped that from my post.
I suspect that some of the variation is advertised versus actual lift heights. That would explain why there's better correlation on the Tire Diameter vs Frame Height chart.An interesting thing to see on the graphs is how scattered the points are on the Tire Size vs Lift chart. 33s are being run on lifts between 2-4.5".
Likely. Something similar is happening with the tire size compared to the hub height. Accurate data would be fun to see, but it is also a lot to ask.I suspect that some of the variation is advertised versus actual lift heights. That would explain why there's better correlation on the Tire Diameter vs Frame Height chart.
Likely. Something similar is happening with the tire size compared to the hub height. Accurate data would be fun to see, but it is also a lot to ask.
....
Maybe the next club outting needs to be at a weigh station and take a survey of each Jeep.