It is pretty difficult to tell just by looking at them. They look a lot like 521 parts to me.
It would not surprise me if they fit 320, 520, 521 and even 620 Datsun trucks.
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Posted 04 November 2015 - 11:24 PM
They look like 521 spindle dog bones to me(spindle assemblies), the reason I say this is because the lower bushing area looks like this on the 320 and early 520.
See how the lower connection is counter sunk for the seal, the 521 lower bushing area looks like your parts, with a ridge that actually sticks out, at least that is what I believe, I don't have a 521 dog bone around here to take a photo of.
Your parts will fit on just about any year 320/520/521 king pin front end, you just need to keep the different year assemblies together with the lower control arm(LCA) mount bolts, as they are made differently than the early 320 mount bolts, 320 lower control arms, 320 bolts, 520/521 lower control arms, 520/521 mount bolts.
Also the 320 LCA shock mounts are about 7/8ths inch wide inside, while the 520/521 shock mounts are about 1 1/4" inside, much easier to find shocks for the 520/521 than the 320.
Posted 13 November 2015 - 12:34 PM
Thanks for the information, now i have to decide if i am going change it to front disc. Does it stop ok with drums?
There are two components to this... 1) the actual stopping-- it's a 2200# truck, so it stops fairly well considering non-power assist drums. However, disc brakes stop better; and 2) the radial nature of drums creates a tendency for them to "stick" when applied (you're pressing them outward on a rotating mass that wants to hang onto them). Disc brakes press axially (you're pinching them together against a rotating mass that is less inclined to hang onto the pads when you release the pedal). I've experienced the "stiction" lockup in the Datsun drums to be particularly annoying. With disc brakes, that will go away (on the disc axle, but of course, not on the drum axle).
...and +1000 for mklotz brake kit
Posted 22 November 2015 - 02:21 PM
Thanks guys, well after i got the turbine wheels and put them on the truck, it looks great but felt something missing and i dont want flares. So friday i went for a 5hrs drive with wife and pick up old 16x8 rally rims which i can't wait to put on $100 CDN .
Posted 04 March 2016 - 01:10 PM