Goemon Posted September 24, 2021 Report Share Posted September 24, 2021 Does anyone know if 720 bushings will fit a 78-79 620? 78-79 part # is 55045-B0700 720 has a different number 55046-01w10 In lower right, # 5 is the bushing. Other pictures are the difference between up to Aug 77 & after Aug 77 76 is on left 79 is on right. The 79 looks like the 720. No one has any for 79 even though they advertise them as being a fit, they are all 55046-07200 They have larger holes and will not work for 78-79 I will not use poly. I prefer Japanese rubber instead of Chinese or Thai. Thank you http://static.carpartsmanual.com/datsun/pickup-1972-1979/large/620-117-01.jpg Quote Link to comment
svswan Posted October 6, 2021 Report Share Posted October 6, 2021 I don't know the answer, but I would be interested to know what Poly bushing you end up using. Just starting a sloooow build of a 79KC. Quote Link to comment
datzenmike Posted October 6, 2021 Report Share Posted October 6, 2021 On 9/24/2021 at 7:36 AM, Goemon said: I will not use poly. I prefer Japanese rubber instead of Chinese or Thai. I would never use poly either. Maybe on a sway bar linkage but that's all. It's too hard. (non compliant) Rubber grips both moving parts and will twist and gives superior vibration and noise isolation. Poly will grip one part and slip when twisted against the other. Doesn't take a genius to see that this chafing will cause wear and noise. (squeaking) I had poly on the rear shackles on my 620 they became oval. Poly belongs on race cars where they are replaced regularly not on street cars and trucks where the owner wouldn't know the difference anyway. (well except for the squeaking) Poly is over hyped nonsense. Quote Link to comment
Goemon Posted October 7, 2021 Author Report Share Posted October 7, 2021 The exact reason I won't use it. It transfers too much vibration also. One guy asked me why I won't use it, I asked why did he insist that I did, he stfu ...LOL I used it once on a VW trans-axle mount and took it out less that a week later. It made the whole interior of the car vibrate and the noise was horrid. I do need to know if 720 & 78-79 shackle bushings are the same. Some places both numbers come up. If the shackles & springs are the same the bushing should be. I found some Japanese 720 bushings, the only 620 I can find are Chinese or Thai Quote Link to comment
datzenmike Posted October 7, 2021 Report Share Posted October 7, 2021 '78-'79 don't seem to match anything else. All 720 are the same except 4x4 after October '82. Can these be turned on a lathe? Quote Link to comment
Goemon Posted December 7, 2021 Author Report Share Posted December 7, 2021 720 will fit 78-79. Yay !!! I found Japanese !!! Quote Link to comment
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