h190 Posted January 1, 2013 Report Share Posted January 1, 2013 I have a 77 620 with the beebani disc brake conversion in the front d21 calipers passport rotors. I am currently running a set of 5 spoke titans with a 235 40 18. I love the titans and the extra traction and the style but sometimes I really feel the need to put the stock wheels on. My factory wheels have a very very nice set of whitewall tires on them and they are sitting on the shelf rotting to pieces. My truck has an sr20det in it and if I could put my factory steelies on it would be the ultimate sleeper, I could even wear and old coat and a flat cap and act like a little old man driving around (maybe add an old camper top to add to the effect. I really want to put my factory wheels on. Cant the caliper be clearanced somehow? They are super thick cast. Does anybody know where I can get some 15 inch steel rims that look like the factory wheels? I could put a wider tire on for added traction and I could weld on some of the ball studs so I can use the baby moon caps. I almost wish I could go back to drums just so I could have that whitewall look again. Quote Link to comment
h190 Posted January 1, 2013 Author Report Share Posted January 1, 2013 I knwo the bolt pattern is 6-5.5 what is the proper backspacing etc etc. Somebody school me on these measurements. Quote Link to comment
ggzilla Posted January 1, 2013 Report Share Posted January 1, 2013 Factory wheels are 14x4.5 - quite narrow. 15" steel wheels are available from other trucks like Chevy or GMC. Quote Link to comment
datzenmike Posted January 1, 2013 Report Share Posted January 1, 2013 Late 720? They were 195/75R14 Quote Link to comment
flatcat19 Posted January 1, 2013 Report Share Posted January 1, 2013 You can buy aftermarket rally's that come with caps. Available in all sorts of sizes. At all sorts of places. Quote Link to comment
wayno Posted January 1, 2013 Report Share Posted January 1, 2013 I currently have late 720 vented rotors with the dual piston hardbody calipers on my 521 truck, I am using stock 1979 datsun 620 14 inch wheels with hubcaps. BTW, I have the later 620 lower balljoint control arms, upper lengthened 720 balljoint control arms, so it is not sticking out anywhere that it would not normally stick out, and I am using early 720 hubs, so the early rims will fit the hubs without any modifacations. Quote Link to comment
h190 Posted January 1, 2013 Author Report Share Posted January 1, 2013 The 78 79 620 wheels are alot different than the earlier models. Can you take pictures of your setup? Quote Link to comment
h190 Posted January 1, 2013 Author Report Share Posted January 1, 2013 Late 720? They were 195/75R14 I have the factory 77 14" wheels with a set of 195 75 14's on them. Quote Link to comment
datzenmike Posted January 1, 2013 Report Share Posted January 1, 2013 Yes but the 720s may have more clearance as they had larger calipers than the late 620 with disc brakes. The '78 and up 620 rims have to clear the disc brake caliper and have more clearance than your '77s. Looks like you tires will fit the 720 rims nicely but it's unknown for sure if they will clear a D-21 caliper. Quote Link to comment
ggzilla Posted January 1, 2013 Report Share Posted January 1, 2013 D21 steel wheels are 14x5 +40 offset (2WD) or 14x6 offset +30 (4WD) They come silver painted, but you can paint them black. Quote Link to comment
wayno Posted January 2, 2013 Report Share Posted January 2, 2013 This is the work truck with 85/86 nissan 720 rotors, 81/82 hubs, and hardbody dual piston calipers, I never actually took photos of it before/after I did it, as I just upgrade whenever possible without saying much. I just went out and took some photos of my setup. And here is the wheel. Quote Link to comment
h190 Posted January 2, 2013 Author Report Share Posted January 2, 2013 what spindle are you using? DOes the spindle have provisions for the brake caliper mounting? If so then I will sell my brake brackets to someone else. So can I get 720 upper conrol arms, late 620 lowers 720 rotors and put all this together? Quote Link to comment
wayno Posted January 2, 2013 Report Share Posted January 2, 2013 what spindle are you using? DOes the spindle have provisions for the brake caliper mounting? If so then I will sell my brake brackets to someone else. So can I get 720 upper conrol arms, late 620 lowers 720 rotors and put all this together? NO, absolutely NOT!!! You do not want to do what I did to your kingpin 620 front end, if you have brackets to put disc brakes on your truck, then stick with them, just use his brackets, then try a set of 14 inch wheels on it, if it doesn't clear the calipers, then find bigger rims, that is what you are going to have to deal with having that kit. I did not understand what you were asking before, the reason I mentioned I had what I have was because I thought you had a ball joint front end, and you can just upgrade to the late 720/hardbody hardware by bolting it in. What I did has issues, issues I have discussed with others so they don't make the same mistakes. It took me years to get this setup to work properly, if I made one more modification I think it would be fine, but in the long run, I am just going to drop my cab onto a 720 frame, and be done with this mod. Quote Link to comment
h190 Posted January 2, 2013 Author Report Share Posted January 2, 2013 Cuss, You cant have brakes and sweet retro wheels lol youc an either look cool or stop, not both. lol I would like to get a caliper and cut it cross sectional to see how thick it is. maybe just maybe you could custom modify the calipers to clear the wheels. Quote Link to comment
wayno Posted January 2, 2013 Report Share Posted January 2, 2013 You should find someone with disc brake 620 steel wheels and test fit one of them, mine clear the hardbody dual piston calipers, whatever they are called. Quote Link to comment
h190 Posted January 2, 2013 Author Report Share Posted January 2, 2013 I already tried a set of 78 disc brake wheels. Its a NO GO. Quote Link to comment
wayno Posted January 3, 2013 Report Share Posted January 3, 2013 I already tried a set of 78 disc brake wheels. Its a NO GO. Was it hitting really bad? What about a half inch spacer? Do the 78 disc brake wheels look like these? Just because it is on a disc brake truck, doesn't mean it was for disc brakes, I am using very early 521 rims on my 1986 nissan 720 disc brake frame with vented rotors/calipers, and they don't hit the calipers, so I am skeptical about rims and fitment anymore. But I keep forgetting that you have beebani's kit, I guess you need to start looking around for other 15" rims that look like stockers, and weld some hubcap keepers on them. Quote Link to comment
dscottdatsun Posted January 11, 2013 Report Share Posted January 11, 2013 I have D21 spindle , rotors and dual piston calipers on my 79 620. It all fits cleanly behind the stock rims. http://community.ratsun.net/topic/47479-bigger-brakes-on-my-620/ Quote Link to comment
Z-train Posted January 11, 2013 Report Share Posted January 11, 2013 I did the late 720 vented disc conversion on my 78 620.They clear the 14 inch rims.I had a conversation with Mike Klotz and he said the D-21 brakes need 15 inch rims to clear. Quote Link to comment
tccanoe Posted January 15, 2013 Report Share Posted January 15, 2013 what is a good tire to go on the 14's? The only 14in tires I can find are kinda bland. My '79 620 king is ready for new shoes and I have a set of late 720 rims I found in pristine condition with vanity rings still in place that I gave $175. Will anything else go on these rims? The center caps are missing. What should I look for as far as caps go that will fit in place? Thanks. TC Quote Link to comment
h190 Posted January 15, 2013 Author Report Share Posted January 15, 2013 195 75 14. Quote Link to comment
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