Go Back  R/C Tech Forums > General Forums > Nitro Off-Road
Will Mugen MBX7r diffs fit the RC8b3.1 ??? >

Will Mugen MBX7r diffs fit the RC8b3.1 ???

Will Mugen MBX7r diffs fit the RC8b3.1 ???

Reply

Old 09-29-2019, 06:39 PM
  #1  
Tech Regular
Thread Starter
iTrader: (16)
 
Join Date: Jun 2005
Location: NC
Posts: 314
Trader Rating: 16 (100%+)
Default Will Mugen MBX7r diffs fit the RC8b3.1 ???

Just wondering. Thx
C_Heath is offline  
Reply With Quote
Old 10-01-2019, 12:58 AM
  #2  
Tech Fanatic
 
tom1974's Avatar
 
Join Date: Jan 2013
Location: la maddalena italy
Posts: 935
Default

Originally Posted by C_Heath View Post
Just wondering. Thx
if you find Ball bearing of the pinion......
You can use pinion and differential mbx7r
tom1974 is offline  
Reply With Quote
Old 10-02-2019, 12:35 PM
  #3  
Tech Addict
iTrader: (3)
 
uDi_MP7.5's Avatar
 
Join Date: Jun 2003
Posts: 516
Trader Rating: 3 (100%+)
Default

tom1974 is correct, you generally need to use the same brand/model pinion as the diff.

The MBX7R uses 8x16x5 bearings, RC8B3.1 uses smaller 6x12x4 bearings.
You may have better luck trying to use MBX8 diffs with MBX8 pinion, these use 6x13x5 pinion bearings, matching the smaller 6mm ID of the AE pinion bearings.

I haven't tried it so you'll have to confirm meshing and shimming yourself, may need to use some extra shims in various places to make everything work.
uDi_MP7.5 is online now  
Reply With Quote
Old 10-03-2019, 03:07 AM
  #4  
Tech Fanatic
 
tom1974's Avatar
 
Join Date: Jan 2013
Location: la maddalena italy
Posts: 935
Default

Originally Posted by uDi_MP7.5 View Post
tom1974 is correct, you generally need to use the same brand/model pinion as the diff.

The MBX7R uses 8x16x5 bearings, RC8B3.1 uses smaller 6x12x4 bearings.
You may have better luck trying to use MBX8 diffs with MBX8 pinion, these use 6x13x5 pinion bearings, matching the smaller 6mm ID of the AE pinion bearings.

I haven't tried it so you'll have to confirm meshing and shimming yourself, may need to use some extra shims in various places to make everything work.
I used pinion and differential s-workz teeth straight on mbx8.
tom1974 is offline  
Reply With Quote
Old 10-03-2019, 03:14 AM
  #5  
Tech Fanatic
 
tom1974's Avatar
 
Join Date: Jan 2013
Location: la maddalena italy
Posts: 935
Default

Originally Posted by uDi_MP7.5 View Post
tom1974 is correct, you generally need to use the same brand/model pinion as the diff.

The MBX7R uses 8x16x5 bearings, RC8B3.1 uses smaller 6x12x4 bearings.
You may have better luck trying to use MBX8 diffs with MBX8 pinion, these use 6x13x5 pinion bearings, matching the smaller 6mm ID of the AE pinion bearings.

I haven't tried it so you'll have to confirm meshing and shimming yourself, may need to use some extra shims in various places to make everything work.
If you find ball bearing 8x12x4 you can use differenziali and pinion mbx7r
You can use differential ht mbx8 on associated
tom1974 is offline  
Reply With Quote
Old 10-07-2019, 02:34 PM
  #6  
Tech Master
iTrader: (1)
 
GREGORY!'s Avatar
 
Join Date: Jun 2006
Location: Greece
Posts: 1,102
Trader Rating: 1 (100%+)
Default

Originally Posted by tom1974 View Post
If you find ball bearing 8x12x4 you can use differenziali and pinion mbx7r
You can use differential ht mbx8 on associated
What's the benefit?
GREGORY! is offline  
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service