[quote name='KK Jale' timestamp='1463776842' post='3054072']
Haven't come across guitardater before, but that 84-87 result is quite incorrect when applied to JV Squiers.
JV5xxxx indicates May-June 1983 on 21frets.com and that list is very good.
I think the OP's bass looks dead right for mid-'83 (save possibly the pencilled 58, but you never know) re. tuners, bridge saddles, raised A pole pieces, and a bunch of other stuff.
[/quote]
I'm not sure that guitar dater is 100% accurate. I've had a couple of results from there that I thought were a bit iffy , My JV 57 has no date on the heel. Perhaps a bit of artistic licence at the factory? The bass looks good to me. I'd buy it if I had the cash...