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TR4/4A Lower steering flex joint upgrade to TR6 Universal joint

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Scotsman

Scotsman

Jedi Hopeful
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I have been told that the TR6 Steering lower Universal Joint (Moss 667-295) can be used to replace the lower Flex Joint (Moss 667-385) used on the TR4A. The advantage being that it removes some of the vagueness in the steering.
- Is this correct and are there any negatives to doing this?
- Is it a straight switch out or are there any other parts necessary


Please note, I am also replacing the original rack and pinion mounts which use rubber bushings with the Moss upgraded security mounting kit 667-293 in part to also improve the steering.

Thanks,

Richard
 
Hi Richard,

I actually replaced both of the original flex joints with the TR6 u-joints. I don't see any downsides. I also have a quick rack installed with solid mounts, and really like the quick and responsive steering. Another benefit is that the u-joints sit in a little different area of the splined shaft, so if you have wear in the splines it may help, and since you are pinching a folded sheet metal coupling rather than a thick case coupling, that helps get the joint tight on the shaft as well.
 
I did the lower replacement and it worked very well.
 
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