The indigenously developed high yielding clone of Hevea brasiliensis RRII 105, revolutionised the history of rubber cultivation in India with a ten fold increase in productivity from the unselected seedlings introduced a century ago, which is unprecedented in any other plantation crop in the country. Concerted efforts for evolving clones better than RRII 105 has resulted in the recommendation of five modern clones of the RRII 400 series viz., RRII 414, RRII 417, RRII 422, RRII 429 and RRII 430. Concurrently, there has been a paradigm shift in the breeding efforts to combine high latex yield with vigorous growth and timber yield. These clones exhibited hybrid vigour for latex yield and growth rendering early tappability. The present study was undertaken to assess the variability for growth, latex and timber yield among RRII 400 series clones across three diverse locations to identify clones with stable latex and timber yield and also examine if there is location specificity. Twenty year old trees were selected from Kanyakumari (ideally suited for rubber), Central Kerala (the major cultivation belt) and North Kerala (seasonally drought prone area) for recording girth and timber yield in terms of clear bole volume. Latex yield over nine years of tapping were also recorded. RRII 105 was used as the check clone. In general, RRII 414 and RRII 430 showed better performance for girth and timber yield, and RRII 430 for latex yield whereas RRII 429 showed better performance for growth in Kanyakumari region. Across locations RRII 414 and RRII 429 exhibited the highest mean girth (74-76 cm) whereas RRII 430 was invariably the highest adn stable latex yielder (62 gm/tree/tap). Clear bole volume varied from 0.07 to 0.2m3. Growth and timber yield in Kanyakumari and Central Kerala was superior to that in the North. Temporal and spatial variability for these traits are discussed.