new front end bushings
05-02-2012, 11:45 AM
#1
10 Second Club
Thread Starter
iTrader: (8)
new front end bushings Any suggestions? I have koni's/strano springs I'm going to swap in and thought I would put new bushings in. car has 111k on it. I don't want squeaky ones but some sort of upgrade would be nice.
05-02-2012, 02:27 PM
#3
Trending Topics
05-04-2012, 10:57 AM
#9
TECH Fanatic
iTrader: (2)
Join Date: Nov 2007
Location: Newport, RI
Posts: 1,406
Likes: 0
Received 0 Likes
on
0 Posts
I would just go with stock style rubber, from someone like Moog. From what I've read on this board, pretty much anything else will squeek.
I just picked up some rear LCA bushings, I went with rubber Moogs, the "1LE" style. Which is basically just the solid bushing, and the only kind of replacement rubber bushing you will find. Some people refer to them as 1LE's. Not that I think there's a huge difference, I just wanted to replace my 12 year old stockers and that is what's available.
I just picked up some rear LCA bushings, I went with rubber Moogs, the "1LE" style. Which is basically just the solid bushing, and the only kind of replacement rubber bushing you will find. Some people refer to them as 1LE's. Not that I think there's a huge difference, I just wanted to replace my 12 year old stockers and that is what's available.
05-04-2012, 11:37 AM
#11
I don't understand your reasoning. The caster bushing deflects because it's required, how do you think it works? It doesn't rotate around the bolt.
By putting in hard plastic your taking away the very thing it needs to function correctly. By the reasoning generally associated with poly, deflection = bad, you should put a del-a-lum bushing there, or jam in a solid brass or steel bushing. Then you'll get absolutely zero deflection.
Look at UMI, and BMR they build their a-arms with roto-joits, or rod ends in that location. It's not by coincidence.
Through deformation, rubber bushings allow a large range of angular motion along a primary axis of rotation. Some bushings pivot only along the primary axis, others along two or more axis through compression.
By putting in hard plastic your taking away the very thing it needs to function correctly. By the reasoning generally associated with poly, deflection = bad, you should put a del-a-lum bushing there, or jam in a solid brass or steel bushing. Then you'll get absolutely zero deflection.
Look at UMI, and BMR they build their a-arms with roto-joits, or rod ends in that location. It's not by coincidence.
Through deformation, rubber bushings allow a large range of angular motion along a primary axis of rotation. Some bushings pivot only along the primary axis, others along two or more axis through compression.
Unfortunately polyurethane bushing replacements sometimes find their way into bushings that require multiple axis of rotation. Nearly incompressible, polyurethane binds along any secondary axis.
Polyurethane is an inappropriate choice for such applications. Correct performance replacements for rubber bushings would incorporate spherical bearings ( for 911, 914, and 944) to provide incompressibility and freedom of motion on multiple axis simultaneously.
Axis of rotation out of alignment with mounts
Similarly, the primary axis of rotation of a suspension member may be poorly aligned with its bushings, due to accident damage or poor design/fabrication. This typically happens when the axis passes through two bushings that are not collinear. Alternately the bushing position may be changeable by alignment adjusters. If the axis can not be similar adjusted, binding will result. Properly designed bushing mounts will ensure proper alignment.
Polyurethane is an inappropriate choice for such applications. Correct performance replacements for rubber bushings would incorporate spherical bearings ( for 911, 914, and 944) to provide incompressibility and freedom of motion on multiple axis simultaneously.
Axis of rotation out of alignment with mounts
Similarly, the primary axis of rotation of a suspension member may be poorly aligned with its bushings, due to accident damage or poor design/fabrication. This typically happens when the axis passes through two bushings that are not collinear. Alternately the bushing position may be changeable by alignment adjusters. If the axis can not be similar adjusted, binding will result. Properly designed bushing mounts will ensure proper alignment.
Last edited by lees02WS6; 05-04-2012 at 11:45 AM.
