[TR] Suspension bushings redux

[Bob Danielson]

Brian, 
 I used Goodparts Nylatron bushings when I redid the front last year
(http://tr6.danielsonfamily.org/Stub%20Axle.htm) and the rears this year
(http://tr6.danielsonfamily.org/TrailingArmBushings.htm) . Along with these
two bushing rebuilds were new stub axles,  solid steering rack mounts and
new steering column bushings and rubber coupling. I can't say I noticed any
additional harshness but I did notice far greater responsiveness. And no
squeaks in either hot or cold weather.

Fitting the Nylatron bushings required no special tools. I greased them
first and the front ones either pressed in place or were tapped in place
with a wood block and a hammer. The Trailing Arms did require the use of a
small sanding flap wheel to clean out the mounting holes and to true them
up. Those ended up being pressed in with some sockets and a C-clamp.


Bob Danielson
1975 TR6 CF38503U
Running w/ Throttle Body Injection
Toyota 5 Speed & Nissan LSD
http://tr6.danielsonfamily.org 


-----Original Message-----
From: triumphs-bounces+75tr6=tr6.danielsonfamily.org at autox.team.net
[mailto:triumphs-bounces+75tr6=tr6.danielsonfamily.org at autox.team.net] On
Behalf Of Brian.L.Jones at gsk.com
Sent: Thursday, May 08, 2008 9:55 AM
To: triumphs at autox.team.net
Subject: [TR] Suspension bushings redux

Listerati,

I have been reading through the archives in preparation for a renaissance of
my TR4's front-end suspension.

New springs are necessary, new shocks are a possibility, new bushes are a
certainty.

>From what I have read, replacing with rubber bushes is out of the
question. Of the alternatives, some have chosen bushings made from a
nylon-type material, some have opted for polyurethane, and a cosmopolitan
few have combined them (poly-lower and nylon-upper, as I recall).

My questions:

1. Have those who opted for nylon found the feedback too harsh for regular
road use?
2. Have those who opted for polyurethane found the wear excessive?
3. Have those who combined bushings achieved what they sought?
4. For those who fitted the bushings themselves, is the reaming achievable
using hand tools, or is a lathe essential?
5. For those with polyurethane, did the application of grease prevent
squeaking? 

I don't race, though I'd probably describe my street driving as 'spirited' 
(a brake booster is also on my list). I'm leaning to all-polyurethane,
pending your insights.

Also, who do the list see as the bushing supplier of choice? TriumphTune,
BPNW, Moss, Revington, TRF all get regular mentions.

Many thanks,

Brian in Valley Forge
Triumph TR4 1963 CT14455-L
This list supported in part by the Vintage Triumph Register
http://www.vtr.org


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