190 d19 rear end and axle housings
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Forum Name: Pulling Forum
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=169290
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Topic: 190 d19 rear end and axle housings
Posted By: brad durst
Subject: 190 d19 rear end and axle housings
Date Posted: 20 Mar 2020 at 7:29pm
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are the axle housing and the rear end housing the same on a 190 vs d19 if the axle is the same diameter. for tractor pulling so not a stock for farm use question. i have a gas 190 with the small axles and i found a d19 for cheap was going to buy for spare parts. thanks brad
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Replies:
Posted By: DrAllis
Date Posted: 20 Mar 2020 at 9:33pm
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The D-19 rear end housing evolved into the mighty One-Ninety rear end housing. While they may look nearly the same, they ain't. The biggest change was the fact that the ring and pinions are different and this includes the pinion bearing bore in the housing. It is larger in diameter. The axle sleeve housings are the same as are the axles, although 190 XT axles are heat treated more for strength where D-19 axles are not. D-19 bull gear and bull pinion gears are different and a different ratio (faster).
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Posted By: brad durst
Date Posted: 21 Mar 2020 at 8:27am
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thanks. so the only thing that woud interchange is the exle housings. and the exles but they are not heat treated. thanks
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Posted By: DrAllis
Date Posted: 21 Mar 2020 at 8:32am
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I'm sure the D-19 and old One-Ninety axles have a certain degree of heat treatment, but part of the small axle "XT" update kit included new axles of the same 2 3/4" size that were supposedly heat treated better for more strength.
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Posted By: brad durst
Date Posted: 21 Mar 2020 at 12:51pm
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ok thanks dr allis. with the rear end and transmission what do i have to change to put a 4 pinion in it out of a 200. i see 4th gear is differnt do i neet to change all gears
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Posted By: DrAllis
Date Posted: 21 Mar 2020 at 2:32pm
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A four-pinion differential required a different ring & pinion gear set, as the two-pinion ring gear I.D. is too small and will not fit onto the four-pinion case. Maybe a good machine shop could mill out the inside of a two-pinion ring gear ??
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Posted By: brad durst
Date Posted: 21 Mar 2020 at 3:46pm
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can i just take everything out off the 200 and put in my early 190 rear end housing. or do i have to use the 200 rearend housing.
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Posted By: DrAllis
Date Posted: 21 Mar 2020 at 5:00pm
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A 200 ring and pinion and some of the trans parts do not interchange. Would have to use 200 main hsg and parts inside of it.
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Posted By: brad durst
Date Posted: 21 Mar 2020 at 5:13pm
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do you know if i could use my small axles on the 200 rearend
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Posted By: DrAllis
Date Posted: 21 Mar 2020 at 5:42pm
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I think so. Haven't done it myself, but I think so.
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Posted By: brad durst
Date Posted: 21 Mar 2020 at 5:54pm
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i will try it and let you know. do you know approximetly what the weight difference is between the 200 rearend and the light 190 rear end. and do you know if the gearing is the same
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Posted By: DrAllis
Date Posted: 21 Mar 2020 at 7:12pm
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Gearing is essentially the same between any age 190XT ( including prior to s/n 9001 that were updated...) and any 200 as long as the rear tires are the same diameter. LOW gear ( low & high side) will be slower on a 200, but the other gears are the same. Any straight 190 before s/n 9001 will be geared differently. Don't know the weight difference. Maybe 50 lbs ?
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Posted By: brad durst
Date Posted: 21 Mar 2020 at 7:29pm
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thank you very much for all your help. brad
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