DUH! Sorry, I was totally thinking of "I Wanna Get Next To You" & NOT "I Can't Get Next To You" by The Temptations(senior moment...).
Norman Whifield was involved with both tunes/production, still, that's no excuse!
I was just re-reading
Standing In The Shadows Of Motown, the section where JJ & Norman Whitfield hook up. The book sez(basically)that Jamerson & Whitfield bumped heads; JJ liked to improv his lines & Whitfield liked more of a written-out approach. As a result, Bob Babbitt played on a lotta of those '70s "Psychedelic" tunes.
FWIW, it really does
sound like Jamerson on "I Can't Get Next To You", though, it could be Babbitt. "Psychedelic Shack" is a tune with a similiar groove.
I do like that era of The Temptations...
"Cloud Nine", "(I Know)I'm Losing You", "Ball Of Confusion", etc
Cool stuff.