bitty Posted November 11, 2022 Share Posted November 11, 2022 I'm wondering how tall of rear tires fit on these tractors ? I'm sure 18.4-42/20.8-38 was standard but has anyone squeezed 20.8-42/18.4-46 or even 20.8-46/18.4-50 on them and still cleared fenders and steps ? Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted November 11, 2022 Share Posted November 11, 2022 The farm I worked at had a 2+2 with 14.4x46 tires on it, they had plenty of room Quote Link to comment Share on other sites More sharing options...
bitty Posted November 11, 2022 Author Share Posted November 11, 2022 2 minutes ago, TractormanMike.mb said: The farm I worked at had a 2+2 with 14.4x46 tires on it, they had plenty of room 14.9-46 is similar to 18-42 if I remember correctly Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted November 11, 2022 Share Posted November 11, 2022 18.4s would stand a little taller obviously, you would certainly hate to find out after you bought and mounted the tires that they didn't work. The issue we had was with the step up rims, they would keep cracking. Quote Link to comment Share on other sites More sharing options...
acem Posted November 11, 2022 Share Posted November 11, 2022 20.8x38 R2s fit but there's not alot of room left. R2 tires have very deep tread when new. 1 Quote Link to comment Share on other sites More sharing options...
2+2love Posted November 12, 2022 Share Posted November 12, 2022 I have 14.9x46 on my 5488 2wd for zapping 1 Quote Link to comment Share on other sites More sharing options...
Gearclash Posted November 12, 2022 Share Posted November 12, 2022 1 hour ago, bitty said: 14.9-46 is similar to 18-42 if I remember correctly Yup. Same RCI group. Along with 20.8 - 38. Quote Link to comment Share on other sites More sharing options...
bitty Posted November 12, 2022 Author Share Posted November 12, 2022 5 minutes ago, Gearclash said: Yup. Same RCI group. Along with 20.8 - 38. Yes. I think they do that so that it's easier to get compatible tires front and back to be correct ratio for MFD axles Quote Link to comment Share on other sites More sharing options...
acem Posted November 12, 2022 Share Posted November 12, 2022 You makin plans Bitty? Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted November 12, 2022 Share Posted November 12, 2022 You could buy more hockey pucks, linkages might be an issue. 2 Quote Link to comment Share on other sites More sharing options...
Mr. Plow Posted November 12, 2022 Share Posted November 12, 2022 I thought they all came factory on 38" rims.....not that 42s wouldn't fit.....need to check my literature I guess... Quote Link to comment Share on other sites More sharing options...
acem Posted November 12, 2022 Share Posted November 12, 2022 A few came with 32" rims. Quote Link to comment Share on other sites More sharing options...
bitty Posted November 12, 2022 Author Share Posted November 12, 2022 6 hours ago, TractormanMike.mb said: You could buy more hockey pucks, linkages might be an issue. I lifted our 7250 1/2" to go for 18.4-46 to get enough clearance for a set of new takeoff 20.8-46 . Without the lift the lugs rubbed the rear light bolts on uneven ground 1 Quote Link to comment Share on other sites More sharing options...
IHC5488 Posted November 12, 2022 Share Posted November 12, 2022 Sometime ago on here I thought there was a 2wd 5488 supporting 20.8-42s and 16.5-15s on it Quote Link to comment Share on other sites More sharing options...
Super A_sepa Posted November 12, 2022 Share Posted November 12, 2022 I'm pretty sure 20.8x42s will fit under at least from reading somewhere but I'm not positive if they had to do anything else to fit them. 1 Quote Link to comment Share on other sites More sharing options...
Mr. Plow Posted November 12, 2022 Share Posted November 12, 2022 9 hours ago, acem said: A few came with 32" rims. Good call.......I wasn't very clear......intended to say nothing over 38" in anything I found......was 42" rubber even available in 1985? My Super 70 Series literature lists 20.8x38 as only available rubber. Quote Link to comment Share on other sites More sharing options...
766 Man Posted November 12, 2022 Share Posted November 12, 2022 5288 2wd coming up for auction locally in the next few weeks. Looks like it needs some TLC and the rear tires will need to be replaced before too long. 1 Quote Link to comment Share on other sites More sharing options...
superih Posted November 12, 2022 Share Posted November 12, 2022 20.8-42 fit, they are tight though 1 Quote Link to comment Share on other sites More sharing options...
Gearclash Posted November 12, 2022 Share Posted November 12, 2022 @bitty I have a tractor with 20.8-42s if you want a real life measurement of that tire size. I do know there is quite a jump in radius from 18.4 to 20.8 on a 42 “ rim. For what it’s worth, I rather call tires by the newer numbers, e.g. 520/85R42 not because I like metric but because there is more information about the tire size in that designation. Quote Link to comment Share on other sites More sharing options...
Dirt_Floor_Poor Posted November 12, 2022 Share Posted November 12, 2022 3 hours ago, Mr. Plow said: was 42" rubber even available in 1985? My 1985 Steiger has 20.8x42 on it. 1 Quote Link to comment Share on other sites More sharing options...
from H to 80 Posted November 12, 2022 Share Posted November 12, 2022 i have 18.4 x42's on my 5488 and there is plenty of clearance. 1 Quote Link to comment Share on other sites More sharing options...
acem Posted November 12, 2022 Share Posted November 12, 2022 Also consider there is significant differences in height and width of the same size tire from different manufacturers. I have an import 18.4x38 that is the same height as a Goodyear 18.4x34... 1 Quote Link to comment Share on other sites More sharing options...
Gearclash Posted November 12, 2022 Share Posted November 12, 2022 4 minutes ago, acem said: Also consider there is significant differences in height and width of the same size tire from different manufacturers. I have an import 18.4x38 that is the same height as a Goodyear 18.4x34... This is indeed the case. If only the standards were standardized. One of my tractors has 520/85R42 rubber on the rear. For a while one was a fairly new BKT and the other a half worn Goodyear. The Goodyear was noticeably shorter, and, strangely, when it got replaced with another BKT this summer, my road speed showed to be a mph or 2 higher. Quote Link to comment Share on other sites More sharing options...
nepoweshiekfarmalls Posted November 17, 2022 Share Posted November 17, 2022 My 1486 has 18.4-42 Firestone 23 degree radials on it. Plenty of room. 20.8-42 tires would be tight! Quote Link to comment Share on other sites More sharing options...
acem Posted November 18, 2022 Share Posted November 18, 2022 What's a rough but running 5088 worth these days? Quote Link to comment Share on other sites More sharing options...
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