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Old 06-19-2010, 11:38 PM   #1
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Default Losi 8t 2.0 rear diff.

What is the best way to shim the diff on these things. I tired of blowing rearends. I shim em tight and they blow, I shim them with a little bit of play they blow. Also how often should the cases be changed out? Thanks.......
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Old 06-20-2010, 01:21 AM   #2
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How old is your chassis? If it gets bent or wears out in the rear of the chassis, you'll start to blow diffs for sure.
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Old 06-20-2010, 01:57 AM   #3
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How old is your chassis? If it gets bent or wears out in the rear of the chassis, you'll start to blow diffs for sure.
Hmm...I ve just started having this problem..2 times in the last 2 mo. At the same hi bite clay track. I don't like it.....
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Old 06-20-2010, 07:52 AM   #4
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are you replacing the gear box case when you are replacing the gears?
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Old 06-20-2010, 08:52 AM   #5
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are you replacing the gear box case when you are replacing the gears?
No I havnt been changing the case. I change the diff holders. I just found out though that because of the heat inside the diff it is also wise to change the case also.
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Old 06-20-2010, 03:54 PM   #6
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In the last week iv had to put in 2 ring gears and a 1 pinion so I'm starting to have this issue. I'm just going to get a new diff case holder. I also put the alu diff things that go on the diff cups in so I think that will solve all problems.
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Old 06-20-2010, 04:01 PM   #7
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In the last week iv had to put in 2 ring gears and a 1 pinion so I'm starting to have this issue. I'm just going to get a new diff case holder. I also put the alu diff things that go on the diff cups in so I think that will solve all problems.
when you change ring or pinion change them both. when new they wear together, you put a new and used together you will prob strip another one. always do that and change the gear box case. ive lucky never blown a r/p since owning the 8t 2.0 , i got it right when it came out
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Old 06-20-2010, 04:08 PM   #8
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I've never blown one. I have it shimmed with a very small amount of play. I bought several sets of diff cases and gears expecting it to happen, but it hasn't.
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Old 06-20-2010, 04:47 PM   #9
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I've never blown one. I have it shimmed with a very small amount of play. I bought several sets of diff cases and gears expecting it to happen, but it hasn't.
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Old 06-21-2010, 09:09 AM   #10
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I just had the rear diff gears blow this weekend, what are the aluminum spacers??could ou post a part#.I just bought my trug second hand, and want to fix this issue correctly. any help is appreciated
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Old 06-21-2010, 09:20 AM   #11
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All you need is the alum rear bearing holders, The plastic ones wear down causing the gear mesh to move apart... Get the alum one and shim per instructions and you should have a problem.

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http://www.losi.com/Products/Feature...rodId=LOSA4454
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Old 06-21-2010, 09:58 AM   #12
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All you need is the alum rear bearing holders, The plastic ones wear down causing the gear mesh to move apart... Get the alum one and shim per instructions and you should have a problem.

LOSA4454

http://www.losi.com/Products/Feature...rodId=LOSA4454
thanks man
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Old 06-21-2010, 10:18 AM   #13
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Also... if you replace the ring and pinion due to it being "blown..." replace the bulkhead. It probably got warped when the ring and pinion got damaged.
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Old 06-21-2010, 10:29 AM   #14
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Quote:
Originally Posted by losi_racer View Post
are you replacing the gear box case when you are replacing the gears?
+1 you have to change the case too.

Quote:
Originally Posted by token View Post
All you need is the alum rear bearing holders, The plastic ones wear down causing the gear mesh to move apart... Get the alum one and shim per instructions and you should have a problem.

LOSA4454

http://www.losi.com/Products/Feature...rodId=LOSA4454
+1 on the alum holders. I have had gears get noisy and when they get too noisy then I replace them but I reuse the alum insert.

The only other thing that will blow rear diffs in this truck quickly is when you land off a jump dont be on the gas hard. Let the truck land and then hit the gas. I have seen more guys blow new r/p because they were on the gas too much.
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Old 06-21-2010, 10:32 AM   #15
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Originally Posted by losi_racer View Post
when you change ring or pinion change them both. when new they wear together, you put a new and used together you will prob strip another one. always do that and change the gear box case. ive lucky never blown a r/p since owning the 8t 2.0 , i got it right when it came out
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+1 you have to change the case too.



+1 on the alum holders. I have had gears get noisy and when they get too noisy then I replace them but I reuse the alum insert.

The only other thing that will blow rear diffs in this truck quickly is when you land off a jump dont be on the gas hard. Let the truck land and then hit the gas. I have seen more guys blow new r/p because they were on the gas too much.
Spot on!
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