just some food for thought guys
today ,after reading this, I started to play with my F250
more so the loading ,shifting 2000# front to back of the bed
and playing with the air bags ,granted the '09 F250 sadly is still TTB
but close enough
over loaded front springs will do this ,like the springs would react in a KJ
with a BB
also to much rake ,rear higher than the front ,by over an inch
same problems ,front end dives when the wheels are turned
Thank You .. This is what I was trying to explain.
The amount of CASTER angle "IS" going to affect how much the front end dives or lifts as well as the spindle assembly offset and definitely the rake will affect the CASTER angle. Too much angle and it will drop... It is the properties of the castor angle which returns you steering wheel to straight. Not enough angle and lift/dive is gone but your steering will not return to center either.
The 3.75 " BS sets the tires out further (look at the original photo, look how much room is in those wheel wells) so that wasn't the problem, a 4"-5" BS in this case would have made it even worse. There was no problem until the wheels were turned and the front dropped.
Tom, tjkj2002, there is nothing to change my mind about. I answered a question for a poster, you called BS when I explained the problem. I wanted answers, you tell me that doesn't dive. I know it dives, I watched it happen, and I had to trim because of it. I have been around here enough in the last year and half to see that you guys can no doubt put a lift in with your eyes closed and hands tied behind your back, but you just didn't run into the issue I did evidently. I also did much research on this site and valued your inputs as well as the others before buying both the lift, wheels and tires, so you can imagine my disappointment when I put it all together and on turning the wheels I found I had to trim. Needless to say my daughter wasn't too happy either. Now before you say you never promote a BB, this Teraflex kit is not a typical BB. It does have a coil spacer in the rear, but does not have a coil spacer up front that you put into the strut assembly so the spring has no extra preload, it is a strut spacer, mounted between the top of the strut and strut mounting pad. As I have explained how many times now. This is no different then putting a 2" spacer ring on top of the clevis or putting on longer strut assemblies. This is also exactly the same style lift used on the newer Dodge RAM lifts.
So NTL, it is possible that there may have been other attributing factors to this problem that at this point really doesn't matter other then to make others aware so they don't make the same mistake I made and waste money on a Libby. I just informed the poster of the issues that I had when he asked the question. Yes, we could have spent more money on a PROPER lift but whats the point when I can put a $300 lift in a Wrangler (with my eyes closed) and run 37s without needing a wheel alignment. So, my daughter opted to remove the lift, sell the tires, sell the Libby and get a Wrangler. Problem solved..