Hey c1 racin; Thanks for the info.....but the New Upper-Deck is Item # 73109.
-The 1st Pro 4 Hara Edition came with the Upper-Deck you listed. --The 2nd Pro 4 Hara Edition came with a New Upper-Deck(73109).
-----I have a Pro 4 that I turned into a Hara Edition.....Ha Ha!. . . . .I just don`t have the extra Suspension/Pivot Blocks.
Hey pocketr2004; I don`t use HPI Springs on My Pro 4. I use Tamiya Springs. Tamiya Springs are better(to me). . . . .I`ve tried HPI Sprngs on My Pro 4 and the Tamiya Springs made it run better.
Take Care