Jmart
Well-Known Member
- Joined
- Dec 17, 2016
- Threads
- 15
- Messages
- 182
- Reaction score
- 49
- Location
- South Bay Area
- Vehicle(s)
- 2017 GT PP Premium, Lightning Blue
- Thread starter
- #1
Hey guys,
First off, thanks to all for contributing such great info to this forum. It's been extremely helpful over the past few months as I've been making plans for my 2017 LB GT Premium PP. On to my question...
I just finished installing BMR's SP080 springs, BK055 LCA bearing kit, and the CB005 cradle bushing lockout kit, and on the ~1 mi test drive I noticed the car is extremely bouncy coming from the rear. I expected a certain amount of twitchiness since I certainly need an alignment, but it feels seriously underdamped: the rear seems to experience a somewhat high frequency oscillation that takes a few cycles to dampen.
Can anyone think of anything I may have missed that I should check?
For some additional background:
-I stuck with my stock PP shocks/struts given the spring rates of the SP080's.
-No other suspension mods
-I made sure to cut the bump stops per the BMR installation instructions
-I seem to be getting the expected F/R ride height after installation and the short test drive, and driver/passenger sides are pretty consistent.
-I made sure to properly seat the springs during installation.
-I made sure to tighten all front/rear bushings with the car up on ramps to account for any clocking issues
Unfortunately I haven't been able to find any alignment shops that have a multi-alignment option like I've seen some reference on the forum, and I'd really like to sort out any potential issues before the alignment if I can. Otherwise I'd just go get the alignment and hope for the best.
Thanks again!
First off, thanks to all for contributing such great info to this forum. It's been extremely helpful over the past few months as I've been making plans for my 2017 LB GT Premium PP. On to my question...
I just finished installing BMR's SP080 springs, BK055 LCA bearing kit, and the CB005 cradle bushing lockout kit, and on the ~1 mi test drive I noticed the car is extremely bouncy coming from the rear. I expected a certain amount of twitchiness since I certainly need an alignment, but it feels seriously underdamped: the rear seems to experience a somewhat high frequency oscillation that takes a few cycles to dampen.
Can anyone think of anything I may have missed that I should check?
For some additional background:
-I stuck with my stock PP shocks/struts given the spring rates of the SP080's.
-No other suspension mods
-I made sure to cut the bump stops per the BMR installation instructions
-I seem to be getting the expected F/R ride height after installation and the short test drive, and driver/passenger sides are pretty consistent.
-I made sure to properly seat the springs during installation.
-I made sure to tighten all front/rear bushings with the car up on ramps to account for any clocking issues
Unfortunately I haven't been able to find any alignment shops that have a multi-alignment option like I've seen some reference on the forum, and I'd really like to sort out any potential issues before the alignment if I can. Otherwise I'd just go get the alignment and hope for the best.
Thanks again!
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