Post-8.8 Swap Quirks: Diagnosis Needed
Ok, so my long awaited and highly anticipated 8.8 swap was finished today. It was not without its hiccups...a broken driverside rear leaf spring was discovered which led to me putting a 2" BDS lift on it.
Heres what was done while it was down:
d35 was removed, '01 Explorer 8.8 installed
2" BDS springs/bushings
4.56 Yukon gears (master install kits used)
Spartan locker in the d30
All new brake components for the 8.8
- The jeep has more "oomph" on take off and feels "more responsive"
- BDS springs are much smoother than my shot factory ones
- Ebrake works MUCH better
The bad (heres where I need help):
- There seems to be an issue with the brakes. They feel like they have air in them, but Im pretty certain they don't. They are soft and go pretty much all the way to the floor. The brakes have been bled several times, same results. If it's not air, then what else could it be? I know that I went to disc brakes in the rear, but I didn't read anywhere in swap threads that I would need to change out the Master Cylinder or Proportionate Valve. Did I miss something or is there a "larger" issue?
- There seems to be some sort of binding in the front, passenger side. It pops when I turn the wheel. Is this caused by the locker? It almost "grabs" the jeep throws it that way, then it pops. My transfer case is not engaged (its in 2H).
- There is a very noticeable whine when traveling down the road ; which I have dismissed as new gears that need to break in.
- My speedo is waaayyyy off. Once again, I expected this, but it was surprising as to how much. I was showing 55MPH @~2k in 4th gear, my friend was behind me and told me he paced me at 40MPH.
Im getting back with my mechanic about the various issues, but would like to have an idea of what we should look at. I picked up the jeep today before he had a chance to drive it (he's a buddy of mine), so it'll be going back to his shop for final tweaks. I just need a consensus on what we should be looking for.