TR IRS/rear axle bushings? other pointers

[glemon]

I have taken the plunge and jumped into the IRS of my TR250, after lots of solid axle British Cars this is a bit of a breave new world for me.

I know I need new U-joints, as far as the main rear bushings on the rear suspension arms if I want good performance and wear without a big sacrifice in noise or comfort are the polyurethane bushings the way to go? (I am looking at the BPNW graphite impregnated ones, but willing to listen to suggestions).

Most all the rubber will be replaced one way or another, hubs seem good, but I would love to clean and grease them, but from what I have heard they are not fun to take apart--any helpful hints or suggestions on my questions or other matters relating the the "ingenious" Triumph TR IRS welcome.

I have both Williams books ("restore" and "improve") and will be taking a look at them tonight as well.

Thanks, Greg

 

[DougF]

I would go with poly or nylon bushings. My belief is that bushings are securing a pivot point and should not be considered in ride comfort. Ride comfort is the job of the springs, shocks and seats.
Hubs aren't a terribly difficult job. The biggest problem is electrolysis between the trailing arms and the studs holding the hubs. If the stud comes out of the arm, the aluminum threads could come with it.

 

[glemon]

The nuts all came off the hub studs pretty easily, in fact I thought they might be undertoqued until I read about how easy it is to strip the stud holes in the arm.

That was kind of my thought on the bushings as well, thanks Greg