Cradle Bushing kit or Cradle Bushing Lock out Kit pros and cons trying to figure out which route to go?
BMR Suspension Component Question
- Thread starter doughboy305
- Start date
I have the lock out kit.
Easy as hell to install and works!
No wheel hop
Easy as hell to install and works!
No wheel hop
I installed the BK048 Delrin cradle bushing kit on my 5.0 with PP. Love it! Did not install the BK049 diff bushings. This is a daily commuter so I'm writing from that perspective (want a fun car not a racing car).
PROs for the BK048
Ultimate stability of the rear suspension. On WOT acceleration the car now feels like it is on rails. The curvy stuff feels better too. A lot.
Longevity. The Delrin is, according to Kelly, a "life of the car" mod. I like this...the stock bushings will degrade over time (although the CB005 by limiting motion might prolong life of the stock bushing).
NVH is manageable. An aftermarket exhaust (I installed a Borla S-Type cat back) will mask most of the NVH increase. It was about 2 weeks before I even noticed anything different.
CONS
Cost. The Delrin cradle bushings are a PITA to install. I did it myself so it was economical. If you are paying a mechanic the cost benefit curve may change significantly.
NVH. I would describe the NVH profile of the BK048 this way. On a newly paved road there is virtually no difference vs stock bushings. Really. As the road surface gets rougher the noise curve ramps up significantly faster with the Delrin bushings vs stock. On a really coarse chip seal I notice more road noise. Not horrific - but obvious. Broken pavement and expansion joints were loud before and I really don't notice much difference.
NVH with BK049 diff bushings. From reviews and comments from BMR, the combination of BK049 differential bushings and BK048 Delrin cradle bushings seems to add the most NVH (either alone seems much more tame). If you want to run a one-piece drive-shaft you might want to think about the BK049 poly diff bushings with the CB005 lock-out kit.
Resale. You'll need the right buyer if/when you sell the car. I suppose you could always put OEM bushings back in. But the CB005 would be sooooo much easier to put back to stock. Me - I want my kids fighting over this car in my will so I don't care.
Hope this helps.
PROs for the BK048
Ultimate stability of the rear suspension. On WOT acceleration the car now feels like it is on rails. The curvy stuff feels better too. A lot.
Longevity. The Delrin is, according to Kelly, a "life of the car" mod. I like this...the stock bushings will degrade over time (although the CB005 by limiting motion might prolong life of the stock bushing).
NVH is manageable. An aftermarket exhaust (I installed a Borla S-Type cat back) will mask most of the NVH increase. It was about 2 weeks before I even noticed anything different.
CONS
Cost. The Delrin cradle bushings are a PITA to install. I did it myself so it was economical. If you are paying a mechanic the cost benefit curve may change significantly.
NVH. I would describe the NVH profile of the BK048 this way. On a newly paved road there is virtually no difference vs stock bushings. Really. As the road surface gets rougher the noise curve ramps up significantly faster with the Delrin bushings vs stock. On a really coarse chip seal I notice more road noise. Not horrific - but obvious. Broken pavement and expansion joints were loud before and I really don't notice much difference.
NVH with BK049 diff bushings. From reviews and comments from BMR, the combination of BK049 differential bushings and BK048 Delrin cradle bushings seems to add the most NVH (either alone seems much more tame). If you want to run a one-piece drive-shaft you might want to think about the BK049 poly diff bushings with the CB005 lock-out kit.
Resale. You'll need the right buyer if/when you sell the car. I suppose you could always put OEM bushings back in. But the CB005 would be sooooo much easier to put back to stock. Me - I want my kids fighting over this car in my will so I don't care.
Hope this helps.
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