mrc 870 #1 Posted March 22 a co-worker saved a raider 10 and attachments from the scrappers. he has offered it to me for small money. i need another wh like i need a hole in my head. but, i thought the raiders had the 10 pinion limited slip tranny. so my question is: does it have a limited slip tranny? thank you mike 3 Share this post Link to post Share on other sites
ebinmaine 70,232 #2 Posted March 22 It should. Yes. 3 Share this post Link to post Share on other sites
ri702bill 8,884 #3 Posted March 22 1 hour ago, ebinmaine said: It should. Yes. "Should" is the key word - a lot can happen in 50 or so years.... 3 1 Share this post Link to post Share on other sites
mrc 870 #4 Posted March 22 i asked him to jack up the tractor and spin one rear wheel. i told him a posi traction type tranny both wheels would spin in the same direction. whereas with an open diff the wheels rotate in different directions. correct? he reported that the wheels rotated in different directions. 2 Share this post Link to post Share on other sites
ebinmaine 70,232 #5 Posted March 22 47 minutes ago, mrc said: i asked him to jack up the tractor and spin one rear wheel. i told him a posi traction type tranny both wheels would spin in the same direction. whereas with an open diff the wheels rotate in different directions. correct? he reported that the wheels rotated in different directions. A worn Limited Slip Differential spring would cause that. The best way is to get a good picture of the brake drum LOCATION. 6 speeds have the drum on a different shaft than an 8. 3 Share this post Link to post Share on other sites
953 nut 57,366 #6 Posted March 22 2 hours ago, mrc said: he reported that the wheels rotated in different directions. Was it in neutral at the time? In 1970 The Raider-10 could have been a 4 speed or an 8 speed. 5 hours ago, mrc said: he has offered it to me for small money Just go ahead and buy it, you know you want to or you wouldn't have posted the question. 2 1 1 Share this post Link to post Share on other sites
Ed Kennell 40,158 #7 Posted March 22 9 hours ago, mrc said: and attachments What? 1 Share this post Link to post Share on other sites
stevasaurus 23,022 #8 Posted March 22 A 4 speed would not have a hi/low in 1970 from the factory. Is the brake drum on the mushroom gear shaft (near the axle housing)?? Does it have the 1" extension on the fill plug?? One of the keys to spining the wheels to see if it is Limited Slip, spin the wheels very slowly. A week spring could still show an 8 pinion tranny. Good pictures of the left side of the trans wopuld help. 3 Share this post Link to post Share on other sites
kpinnc 13,418 #9 Posted March 23 (edited) 20 hours ago, ri702bill said: "Should" is the key word - a lot can happen in 50 or so years.... My 867 has an 8 pinion diff. The 10 pinion disintegrated, and all I had was an 8 pinion to replace it with. Edited March 23 by kpinnc 4 Share this post Link to post Share on other sites
mrc 870 #10 Posted Tuesday at 01:27 PM ed, my co-worker reports just a 42 inch snowplow with new cutting edge 2 Share this post Link to post Share on other sites
Ed Kennell 40,158 #11 Posted Tuesday at 01:44 PM 16 minutes ago, mrc said: ed, my co-worker reports just a 42 inch snowplow with new cutting edge That's $150 2 Share this post Link to post Share on other sites
Handy Don 13,225 #12 Posted Wednesday at 07:47 PM On 3/23/2025 at 12:37 AM, kpinnc said: My 867 has an 8 pinion diff. The 10 pinion disintegrated, and all I had was an 8 pinion to replace it with. I have an LSD 10 that is working just fine but after seeing how the one @Achto was running disintegrated I’m keeping a low-hours 8-pinion on the shelf. If I come across an LSD for a spare, I might jump on it. 2 1 Share this post Link to post Share on other sites
kpinnc 13,418 #13 Posted Wednesday at 08:02 PM 12 minutes ago, Handy Don said: If I come across an LSD for a spare, I might jump on it. I also replaced the LSD in my 1971 Bronco, after seeing what happened with the 867. The hydro in my Bronco is strong and very fast. I want it to stay that way. Nothing against them, just personal preference. 2 Share this post Link to post Share on other sites
Handy Don 13,225 #14 Posted Wednesday at 08:56 PM 41 minutes ago, kpinnc said: I also replaced the LSD in my 1971 Bronco, after seeing what happened with the 867. The hydro in my Bronco is strong and very fast. I want it to stay that way. Nothing against them, just personal preference. The 6-speed replaced the 3-speed when refurbishing my 854 (during which, do I recall, I got some parts from you?). Long story, but when the 6-speed came to me it had been opened by an excellent WH tech and the diff disassembled in order to use a press to remove one astonishingly stubborn hub. (All started by wanting to preemptively install all new seals.) Anyway, at that time the innards were showing remarkably little wear and I’ve probably put less than 50 hours on.it since so I have hopes it’ll outlive me! 3 1 Share this post Link to post Share on other sites
Achto 28,534 #15 Posted Thursday at 12:03 AM (edited) 4 hours ago, Handy Don said: If I come across an LSD for a spare, I might jump on it. I happen to have one, half of it is in good shape. Edited Thursday at 12:04 AM by Achto 3 2 Share this post Link to post Share on other sites
Handy Don 13,225 #16 Posted Thursday at 02:04 PM 14 hours ago, Achto said: I happen to have one, half of it is in good shape. Wondering which half is which?! 🤣 1 Share this post Link to post Share on other sites
Handy Don 13,225 #17 Posted Thursday at 04:11 PM 15 hours ago, Achto said: I happen to have one, half of it is in good shape. Just for the record, the important wear in an LSD is at the ends of the teeth on the floating pinion gears (reducing their diameter) and the corresponding inner walls of the main housing (allowing them to rotate further from the axle gear). Friction between these components due to the force of the LSD spring is, in fact, what causes the pinions to resist turning and therefore applying power evenly to both rear axles (a diff lock would completely lock the pinions and yield a “live axle"). In @Achto’s LSD, I suspect the wear led to diminishing engagement between the pinions and the axle gears until, under a very heavy load, there was a cascading slippage and catastrophic “gnashing of teeth." Note that pinion gears do not rub a spring or the main housing in the 8- and 4-pinion diffs--a critical contributor to their longevity! 1 Share this post Link to post Share on other sites
Achto 28,534 #18 Posted Thursday at 04:18 PM (edited) 14 minutes ago, Handy Don said: the important wear in an LSD is at the ends of the teeth on the floating pinion gears (reducing their diameter) and the corresponding inner walls of the main housing (allowing them to rotate further from the axle gear). Do the pinions really float? It seems to me that they use the housing bolts as an axle for the pinions on one side. Guess the other side floats though. Strange that on mine, the side that the pinions were riding on the housing bolts is the side that failed. Edited Thursday at 04:26 PM by Achto Share this post Link to post Share on other sites
Handy Don 13,225 #19 Posted Thursday at 05:01 PM 38 minutes ago, Achto said: Do the pinions really float? It seems to me that they use the housing bolts as an axle for the pinions on one side. Guess the other side floats though. Strange that on mine, the side that the pinions were riding on the housing bolts is the side that failed. Thanks for the clarification. I believe you are correct that only one set of pinions floats in its body; the other set is on the housing bolts. As for the failure, I love this line from the play The Man of LaMancha: “It doesn’t matter if the pitcher hits the stone or the stone hits the pitcher--either way it’s bad for the pitcher” 😁 2 Share this post Link to post Share on other sites
