fmdooom240sx Posted July 29, 2016 Report Share Posted July 29, 2016 I've been having issues with this conversion. I purchased a set of front cool overs with 280zx spindles from techno toy tuning. I also purchased a set of hubs, rotors, campers and master cylinder from a guy on eBay. The hubs are from a 79' 280zx. So naturally I bought new tapered bearings, and lubed them up and went to install them but the inner bearing is way smaller than the spindle is, so it stops 3/4 of an inch away from the end of the spindle, making it impossible to install the hub. Has anyone had any issues with these? I'm assuming I have the wrong size hub, but I need assurance. Quote Link to comment
Dolomite Posted July 29, 2016 Report Share Posted July 29, 2016 Post pics of the hubs 1 Quote Link to comment
DISLEXICDIME Posted July 29, 2016 Report Share Posted July 29, 2016 I thought you need 81 and newer zx hubs to Do the swap Quote Link to comment
fmdooom240sx Posted July 29, 2016 Author Report Share Posted July 29, 2016 Hold on lol I'm trying to figure out how to post a couple pictures Quote Link to comment
fmdooom240sx Posted July 29, 2016 Author Report Share Posted July 29, 2016 Post pics of the hubs https://m.flickr.com/#/photos/107887624@N07/28352424250/ Quote Link to comment
flatcat19 Posted July 29, 2016 Report Share Posted July 29, 2016 Is there a race in the hub for bearing to sit against? Quote Link to comment
qwik510 Posted July 30, 2016 Report Share Posted July 30, 2016 Are you sure they sent you the correct bearings? 1 Quote Link to comment
datzenmike Posted July 30, 2016 Report Share Posted July 30, 2016 I thought you need 81 and newer zx hubs to Do the swap '79-'83 280zx turbo or normally aspirated is what you need for the zx strut and brake swap. Maxima struts are very similar for caliper and vented rotor and a good substitute. The Maxima was introduced half way through the '80 model year so look for anything after a Jan '80 build date. I've been having issues with this conversion. I purchased a set of front cool overs with 280zx spindles from techno toy tuning. I also purchased a set of hubs, rotors, campers and master cylinder from a guy on eBay. The hubs are from a 79' 280zx. So naturally I bought new tapered bearings, and lubed them up and went to install them but the inner bearing is way smaller than the spindle is, so it stops 3/4 of an inch away from the end of the spindle, making it impossible to install the hub. Has anyone had any issues with these? I'm assuming I have the wrong size hub, but I need assurance. 1/ If this is a replacement bearing for the old ones that were in the hubs you bought, then these hubs are likely from an old PL510 with the smaller bearing. 2/ If you ordered zx bearings then they got you the wrong (smaller) ones. 3/ If they are the correct bearing, the only other way it doesn't fit on the spindle is if those struts are from a later 240sx... they had a larger spindle than the 280zx. The correct inner zx bearing is # 40210-A0100 The correct outer zx bearing is # 40215-A0100 These two bearings are used on EVERY? Datsun Car after the PL510 and the very early '73 610. The cut off is around '86 300zx/S12/ 810Maxima 1 Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 Is there a race in the hub for bearing to sit against? Yeah there's 1 for each bearing. I kinda figured that they weren't supposed to be there after I put the outer race on and the cap for the bearing wouldn't go on. Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 '79-'83 280zx turbo or normally aspirated is what you need for the zx strut and brake swap. Maxima struts are very similar for caliper and vented rotor and a good substitute. The Maxima was introduced half way through the '80 model year so look for anything after a Jan '80 build date. 1/ If this is a replacement bearing for the old ones that were in the hubs you bought, then these hubs are likely from an old PL510 with the smaller bearing. 2/ If you ordered zx bearings then they got you the wrong (smaller) ones. 3/ If they are the correct bearing, the only other way it doesn't fit on the spindle is if those struts are from a later 240sx... they had a larger spindle than the 280zx. The correct inner zx bearing is # 40210-A0100 The correct outer zx bearing is # 40215-A0100 These two bearings are used on EVERY Datsun Car after the PL510 and the very early '73 610. The cut off is around '86 300zx/S12/ 810Maxima So it's possible to fit bigger bearings in those hubs? That would be without the race for each side? Quote Link to comment
datzenmike Posted July 30, 2016 Report Share Posted July 30, 2016 The hub is machined to take a certain size bearing race. The race is the outer surface that the bearing rollers 'roll' against. It's replaceable so that the hub doesn't have to be. Are you saying the race does press into the hub???? That would support the view that you do have zx hubs. If the bearing does not fit the spindle then probably NOT a 280zx spindle. 1 Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 The hub is machined to take a certain size bearing race. The race is the outer surface that the bearing rollers 'roll' against. It's replaceable so that the hub doesn't have to be. Are you saying the race does press into the hub???? That would support the view that you do have zx hubs. If the bearing does not fit the spindle then probably NOT a 280zx spindle. Thats kind of what I'm thinking, but hoping it's just the wrong bearing. The race does press in. I'm assuming the race isn't necessary for the outer bearing, because with it on it doesn't allow me to put the cap back on over the end of the spindle. Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 The hub is machined to take a certain size bearing race. The race is the outer surface that the bearing rollers 'roll' against. It's replaceable so that the hub doesn't have to be. Are you saying the race does press into the hub???? That would support the view that you do have zx hubs. If the bearing does not fit the spindle then probably NOT a 280zx spindle. https://flic.kr/p/KcpzWS Quote Link to comment
datzenmike Posted July 30, 2016 Report Share Posted July 30, 2016 Ahh may have found a mistake on my part. Those bearings are shown for the '87-'82210 (B-2310) BUT FOR THE REAR AXLE. The fronts take a different bearing than those I listed. The strut pictured may be from a 210? The casting bolt holes for the caliper are not the same as those for a zx. 1 Quote Link to comment
Dolomite Posted July 30, 2016 Report Share Posted July 30, 2016 My guess is your eBay purchase is where something is wrong. T3 doesn't do sx struts so there's no way You got larger than zx spindles. Any chance you're trying to use an outer bearing on the inside? 1 Quote Link to comment
flatcat19 Posted July 30, 2016 Report Share Posted July 30, 2016 Something is amiss... And...yes, you want to have races in the hub. No question. You need them for the bearings to roll on. 2 Quote Link to comment
DISLEXICDIME Posted July 30, 2016 Report Share Posted July 30, 2016 Do you still have the bearing box's so you can check the part numbers and see what they fit Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 My guess is your eBay purchase is where something is wrong. T3 doesn't do sx struts so there's no way You got larger than zx spindles. Any chance you're trying to use an outer bearing on the inside? I'm assuming it is, but hoping it's not. Now I gotta figure this whole situation out. Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 Something is amiss... And...yes, you want to have races in the hub. No question. You need them for the bearings to roll on. Yeah man. I've never installed tapered bearings before but I didn't feel good leaving them out lol Quote Link to comment
datzenmike Posted July 30, 2016 Report Share Posted July 30, 2016 I had a growly front wheel bearing on my '84 Maxima struts. Went to my junk pile and got a set from my '74 710 hubs... prefect fit, exact same. Well here is the bearing dimensions for the 280zx... 31.75/19mm in American that's 1.25" by 0.7486" I have to assume this is the inner diameter of the rear 1.25" and the inner diameter of the outermost one. 0.746" The 280zx caliper mounting bolt holes on the 280zx are 89mm or 3.5" center to center. If those struts are different, then not a 280zx strut. If they are 3.5" it does not mean they are as there are other struts with that same spacing. The 280zx caliper mounting 'ears' are 19mm or 0.7486" (basically 3/4") thick. 1 Quote Link to comment
Doctor510 Posted July 30, 2016 Report Share Posted July 30, 2016 Yeah man. I've never installed tapered bearings before but I didn't feel good leaving them out lol Did you REPLACE the outer races in the hub for BOTH new bearings? Quote Link to comment
toylet Posted July 30, 2016 Report Share Posted July 30, 2016 you have to wiggle the hub/rotor assembly a little to get it to slide down on spindle all the way. try that Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 Did you REPLACE the outer races in the hub for BOTH new bearings? Yeah it came with the set. I tapped both in, and I realized it wasn't gonna work because the cap for the hub wasn't gonna lock in due to the races being in place Quote Link to comment
fmdooom240sx Posted July 30, 2016 Author Report Share Posted July 30, 2016 you have to wiggle the hub/rotor assembly a little to get it to slide down on spindle all the way. try that The problem is that the bearing is way to small to sit back against the spindle. Might have the wrong size hub. Quote Link to comment
datzenmike Posted July 30, 2016 Report Share Posted July 30, 2016 I had a growly front wheel bearing on my '84 Maxima struts. Went to my junk pile and got a set from my '74 710 hubs... prefect fit, exact same. Well here is the bearing dimensions for the 280zx... 31.75/19mm in American that's 1.25" by 0.7486" I have to assume this is the inner diameter of the rear 1.25" and the inner diameter of the outermost one. 0.746" The 280zx caliper mounting bolt holes on the 280zx are 89mm or 3.5" center to center. If those struts are different, then not a 280zx strut. If they are 3.5" it does not mean they are as there are other struts with that same spacing. The 280zx caliper mounting 'ears' are 19mm or 0.7486" (basically 3/4") thick Measure and see what you get. Quote Link to comment
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