Hyper 7 Diff

I purchased a Hyper 7 roller from someone to do a Brushless Conversion. I took the center diff apart and it does not appear that I can replace the metal spur with a plastic one.

I tried finding a pic of the diff on line (no cam) and I was unable to do so.

Does anyone know what type of diff this is? Am I just missing something obvious? Do I need to get a new center diff?

[BrianG]

Welcome to the forums!

Actually, I have a Hyper8 (which uses the same diff) and both the 44T and 46T Kyosho spurs DO fit. You might need to pick up a pack of Ofna diff gaskets to shim the spur a little though.

Thanks for the quick reply. Its not that I do not hink the plastic spur will fit, it does not appear I can remove the spur from the housing. After takig it apart, ther does not appear to be a way ro just replace the gear???

[BrianG]

1: Remove the spur from the cup by removing the 4 screws.

2: Pull the inner bevel gear off the spur (might have to gently pry with a small flat-bladed screwdriver).

3: Slide the pin out.

4: Pull the outdrive out. Don't forget the little orange O-ring.

Do you have pics by any chance on what I am "prying" off. I think that is my issue! I do not want to pry anything off, obviously I am new to 1/8th scale and I did not want to damage the diff.

Thanks

[BrianG]

Well, it's the only bevel gear that is attached to the spur when you pull it off.

Thanks for the exploded view... I think I am on my way to disassembling the diff again.

What BL setup do you use in you Hyper 8?

Your help is much appreciated.

[BrianG]

No problem!

It's the third section of this page.

very nice. I actually have your page bookmarked from previous browsing, just did not realize it was your work. (never clicked the "my Brushless..." link)

thanks for your time.

can I order that motor mount on this site?

[BrianG]

Thanks!

Mike (site owner) can make the mount, but it's not in the store yet. It was a custom job. Email him and he'll let you know the price and stuff...

I will. Thanks.