flyfish Posted July 9, 2020 Report Share Posted July 9, 2020 Hi folks, I need a boss adapter for a new steering wheel. Does anyone know the diameter and spline count on the 521? Thanks in advance. 1 Quote Link to comment
mainer311 Posted July 10, 2020 Report Share Posted July 10, 2020 Almost all old Datsuns have the same steering shaft diameter/spline. I know for a fact that my Roadster and 521 are identical, and I think someone mentioned that Z’s are the same as well. That might help with your search. 2 Quote Link to comment
flyfish Posted July 10, 2020 Author Report Share Posted July 10, 2020 Thanks. I'll lookin that direction. 1 Quote Link to comment
datzenmike Posted July 10, 2020 Report Share Posted July 10, 2020 12 hours ago, mainer311 said: Almost all old Datsuns have the same steering shaft diameter/spline. I know for a fact that my Roadster and 521 are identical, and I think someone mentioned that Z’s are the same as well. That might help with your search. Had a zx steering wheel on my 620 and it's now on my 710 so good up into the 80s at least. 1 Quote Link to comment
mklotz70 Posted July 11, 2020 Report Share Posted July 11, 2020 There's some info in this vid.... Some more here...... .....still more.... .....and..... 2 Quote Link to comment
Greaser2 Posted July 11, 2020 Report Share Posted July 11, 2020 A 240 adaptor will fit. 1 Quote Link to comment
yenpit Posted July 11, 2020 Report Share Posted July 11, 2020 As far as I know, only the smaller Datsun 1200 series has a smaller spline, likely thru the later 210 series! I have not pulled my 521 steering wheel off yet, but sounds like it is the same as the 510 & Z car........... 1 Quote Link to comment
Stoffregen Motorsports Posted July 12, 2020 Report Share Posted July 12, 2020 I had a 720 steering wheel hub on my 320 column. So 1965 all the way through 198# was the same. On trucks at least. 2 Quote Link to comment
yenpit Posted July 13, 2020 Report Share Posted July 13, 2020 I pulled my OEM wheel off this weekend, fitted a 510 hub kit. The hub "seats" itself on the splines & allows the big nut to tighten up, however the hub tightens down, leaving a 1/2in gap between the hub & the 2pc plastic steering column cover. I have already messaged Jake Anderson from the Facebook pages, as he is 3D printing the 2pc cover. He said there is a pretty good chance that he can make the 2pc plastic cover LONGER, to close up this gap, would simply very likely need trimming to fit the VARIOUS depths of the various hub kit manufacturers. I might just try gluing a strip of black foam or rubber to either the plastic cover or the hub, to fill up this gap............. 2 Quote Link to comment
mainer311 Posted July 13, 2020 Report Share Posted July 13, 2020 I designed and printed a flared plastic ring that I then glued into the rear trim piece that comes with a Grant kit. 4 Quote Link to comment
d.p Posted July 14, 2020 Report Share Posted July 14, 2020 Greaser2 has a slick fix with a grant adaptor. I got one but haven’t gone about getting a new wheel yet. 1 Quote Link to comment
BrothersGarage Posted July 15, 2020 Report Share Posted July 15, 2020 On 7/13/2020 at 12:46 PM, mainer311 said: I designed and printed a flared plastic ring that I then glued into the rear trim piece that comes with a Grant kit. You wanna print another? 😉 1 Quote Link to comment
Greaser2 Posted July 15, 2020 Report Share Posted July 15, 2020 My gap was about an inch and came up with a spacer but it’s not easy. 1 Quote Link to comment
mainer311 Posted July 16, 2020 Report Share Posted July 16, 2020 11 hours ago, BrothersGarage said: You wanna print another? 😉 If I can find the file on my work computer, then gladly. I don’t think I have it anymore, but I’ll look. 1 Quote Link to comment
mklotz70 Posted July 16, 2020 Report Share Posted July 16, 2020 Just fyi.....if you only have a small gap....the hole that holds the blinker switch in position is slotted so that it can move a bit. That allows the blinker's plastic housing to be adjusted a bit. I think it's about a 1/4" and yours may be topped out anyways. Quote Link to comment
BrothersGarage Posted July 16, 2020 Report Share Posted July 16, 2020 13 hours ago, mainer311 said: If I can find the file on my work computer, then gladly. I don’t think I have it anymore, but I’ll look. Not a big deal, but thanks for taking a peak if you remember. 1 Quote Link to comment
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