Driveshaft issues

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javi83

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Hello guys today when I went to go use my losi it started to slow down too fast when I let go of the throttle and I noticed could be drive shaft or the cups because I would spin the wheels manually with pushing the driveshaft to the front of the truck and it would find itself to the going back and when the driveshaft shifted to the back it started being hard to move wondering what the issue is because the cups are new and replaced the pins on the driveshaft too
 

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I did grind and now they are flush with the diff cups but the shaft looks like it rubbing against the cup but idk why it’s doing it now from the whole time of having it
 
Ah I do see that now, curious question how are the diff cup bearings in the center diff tower? How is the pinion bearings on the front diff? I wonder if a bearing blew out and its causing your issue. Grab the diff cups and see if they move more than they should.
 
Is the centre diff tower not on back to front , I'm sure the spur gear cover is supposed to be at the rear ,when we can see the steering arm
 
Aaron w said:
That makes sense then, I was unaware of the change on the 2.0 , noted for future reference
Click to expand...
They flipped the diff and moved it backwards a little to reduce the driveline angles. This means the chassis, axles, clutch housing, throttle linkages and plate, and mesh inserts are different on a 2.0. Here's everything you need to convert to a true 2.0.
https://fearlessrc.com/product/TDN99004/
 
I personally don't intend to, but the only reasons might be:
Better ackerman
Better drive shaft angles, therefore higher drivetrain efficiency and life.
Your chassis is bent
 
Last edited:
The 2.0 sterring components fit on a 1.0/5 The drive shaft angles are moot as far as efficiency goes. Plenty of people running loads of power theories the 1.0/5 models without issues.
A 1.0/5 chassis is easier and typically cheaper to procure then the 2.0. really if it comes to the point where a 2.0 chassis is all you can find, you'll be better then half the cost of a new 5ive t just getting the chassis and associated parts to convert. Over to the new "improved" design.
 
Losi wouldn't have bothered to do it if the reduction of angle was completely moot. And absolutely a 1.0 can be made stronger than the 2.0 with aftermarket shafts and drive cups.
Regardless, I replied to Aaron simply so he could note the differences for future reference.
 
javi83 said:
Hello guys today when I went to go use my losi it started to slow down too fast when I let go of the throttle and I noticed could be drive shaft or the cups because I would spin the wheels manually with pushing the driveshaft to the front of the truck and it would find itself to the going back and when the driveshaft shifted to the back it started being hard to move wondering what the issue is because the cups are new and replaced the pins on the driveshaft too
Click to expand...
Hello, my LOSI 5T 2.0 has the same problem as you posted. Have you found the reason? How did you solve it?
 
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