Slight And Occasional Clunking On Downshifts

[90LS400Lexus]

I am getting an occasional and MINOR clunking/clank type sound on some downshifts when I am slowing and I do not have the blower on or radio. It sounds like u-joints may be on the blink. I am wondering though if a bad transmission mount would also cause this? I know my engine mounts are toast and tranny mount probably is as well. I am getting them both changed and wondering in advance if a tranny mount would cause this clunking sensation/sound?

[Captain Meeks]

I am getting an occasional and MINOR clunking/clank type sound on some downshifts when I am slowing and I do not have the blower on or radio. It sounds like u-joints may be on the blink. I am wondering though if a bad transmission mount would also cause this? I know my engine mounts are toast and tranny mount probably is as well. I am getting them both changed and wondering in advance if a tranny mount would cause this clunking sensation/sound?

More than likely a transmission mount...I have had that problem and thats what it was on my car...the Lexus I have now doesnt do it..but it has been an issue in the past..it was a back transmission mount..when I came ahead on the engine it would raise without much noise..when I let off of the gas the transmission would set back down causing a klunk sound by the weight dropping...sorry cant be more help maybe someone will reply with more helpful info... goodluck hopefully getting them changed will fix the issue

[90LS400Lexus]

Thanks. Yeah, I am sure they are both shot. Also I have a shaking of the gear shifter at highway speeds.