PolyurethaneTrunnion Bushings

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I know this topic has been covered a million times already, but I've 
just spent 45 minutes reading previous threads and there seems to be 
conflicting information.

With poly trunnion bushings (AMX) is it 
ok to torque the spindle nut to only 15 ft. lbs (vs. the factory 35) if using a nylock nut?  If I 
go any tighter than that I cannot turn the trunnion by hand.  Even at 
that I have to put a bolt through the upper control-arm mounting hole to
 gain some leverage when twisting.  I see that 15 ft. lbs is the torque spec for the big car trunnions, but they use a castle nut and cotter pin.

I only want to do this job 
once.  Obviously, I want the car to be safe but I also want to make sure
 that the steering will self-center after a turn.

If I had it to 
do over again I'd probably go with the Rare Parts rebuilds, which seem 
to be closest to OEM, but I already got these trunnions and poly 
bushings from Galvin before I read about the potential problems with 
poly bushings.

Edited by CamJam - Oct/04/2014 at 12:53am

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CamJam Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: Jan/04/2014 Location: Arizona Status: Offline Points: 6549	Post Options Post Reply Quote CamJam Report Post Thanks(0) Quote Reply Topic: PolyurethaneTrunnion Bushings Posted: Oct/04/2014 at 12:50am
	I know this topic has been covered a million times already, but I've just spent 45 minutes reading previous threads and there seems to be conflicting information. With poly trunnion bushings (AMX) is it ok to torque the spindle nut to only 15 ft. lbs (vs. the factory 35) if using a nylock nut? If I go any tighter than that I cannot turn the trunnion by hand. Even at that I have to put a bolt through the upper control-arm mounting hole to gain some leverage when twisting. I see that 15 ft. lbs is the torque spec for the big car trunnions, but they use a castle nut and cotter pin. I only want to do this job once. Obviously, I want the car to be safe but I also want to make sure that the steering will self-center after a turn. If I had it to do over again I'd probably go with the Rare Parts rebuilds, which seem to be closest to OEM, but I already got these trunnions and poly bushings from Galvin before I read about the potential problems with poly bushings. Edited by CamJam - Oct/04/2014 at 12:53am
	'73 Javelin 360 (current project) '72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD

401MATCOUPE Members Profile Send Private Message Find Members Posts Add to Buddy List AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367	Post Options Post Reply Quote 401MATCOUPE Report Post Thanks(0) Quote Reply Posted: Oct/04/2014 at 5:51am
	Cameron....I do not use the poly at this interface.....there is two place IMHO that the desgn need rubber. 1. The trunion interface with spindle 2. The torque links on AMX, dealer installed Javelin and Gremlin. I just don't like they trunion bushing does not have metal inner sleeve to torque on.
	Ross K. Peterson 68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT

CamJam Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: Jan/04/2014 Location: Arizona Status: Offline Points: 6549	Post Options Post Reply Quote CamJam Report Post Thanks(0) Quote Reply Posted: Oct/04/2014 at 9:25am
	Thanks for your thoughts on this Ross. Where can I buy the rubber vertical trunnion bushings?
	'73 Javelin 360 (current project) '72 Baja Bronze Javelin SST '69 Big Bad Orange AMX (2018 Teague Heritage Award) SOLD