RCCrawler Forums

HRDROKN · 01-06-2010, 08:53 PM

So I have a set of Junfac drive shafts for my creeper, but the rear is about 8mm too long for the rear with the DIG. So I figure that I will just shorten the rear by about 10mm, well I learned that you can't do that as the shaft key does not extend the length of the outer shafts ID. So that one goes to the scrap pile!

I didn't see that Junfac made anything shorter than 82mm...

nstn8 · 01-07-2010, 03:32 AM

That stinks... I was really hoping to use these on a Creeper with Dig.

Riksss · 01-07-2010, 05:17 AM

I am using the 3racing drive shafts and I also have dig. I just had to shorten one with a saw and file.
Junfac do make a short shaft that is sold individualy that should work.

Sheep Shagger · 01-07-2010, 08:40 AM

You could just drill and tap a hole on the female shaft and use a small bolt / grub screw as a key. Obviously have to be careful to set it correctly so it catches but doesn't bind.
I take it you couldn't have just cut the male shaft down to make the length you needed, but it's a bit late now anyway.

HRDROKN · 01-07-2010, 08:59 AM

Quote:

Originally Posted by Riksss

I am using the 3racing drive shafts and I also have dig. I just had to shorten one with a saw and file.
Junfac do make a short shaft that is sold individualy that should work.

According to the information on their website... 82mm is their shortest shaft and the Creeper needs about 75 - 76mm compressed, depending on you link configuration.

s14slide · 01-07-2010, 09:07 AM

Quote:

Originally Posted by HRDROKN

According to the information on their website... 82mm is their shortest shaft and the Creeper needs about 75 - 76mm compressed, depending on you link configuration.

Glad I held off on ordering my d/s set. This is the exact info I wanted before and no one offered up. Thanks for saving me $40+.

snwchris · 01-07-2010, 10:16 AM

Traxxas Shafts & Steel Yokes... all I had to do was measure & cut and working like a champ.

Alot cheaper & easier then modifing some of those metal shafts

Rockfrog · 01-07-2010, 02:12 PM

I am still using a Junfac in the front, but had to swap the rear back to my Traxxas (w/ steel yokes) for the rear so i could cut them down. I was going to shorten my Junfacs down later. Might have to check that one now, as I have the earlier Stainless Steel shafts so they may differ.

A quick fix would be to add two grub screws and fill with JB (dip the male shaft in lube so it doesn't stick and slides in and out easily - Oh that's just sounding bad

) to remake the keyway

b00st3d · 01-18-2010, 09:23 PM

cant ya just grind it down on a bench grinder and key the whole shaft?

craigerk · 01-19-2010, 07:53 AM

I had the same problem with my axial shafts. I ended up cutting it too small and it would twist when fully compressed. I swapped the males front to rear and they both worked so I just extended the 4 links a little to make them fit. It didn't need much, it would compress but would stick cause it just needed that little bit extra. I'm hoping to just grab some longer links soon.

LSXEric · 01-20-2010, 01:03 PM

Well there is one way to possibly get around this. Make some nice links out of allthread with tubing or derlin, and run a shorter link set up in the front with the longer links in the rear. Fix your drive shaft issue, and help crawling with a 60/40 weight setup.

jeepfreek · 01-20-2010, 06:48 PM

Quote:

Originally Posted by LSXEric

Well there is one way to possibly get around this. Make some nice links out of allthread with tubing or derlin, and run a shorter link set up in the front with the longer links in the rear. Fix your drive shaft issue, and help crawling with a 60/40 weight setup.

This would be a good idea for a full on comp setup for sure! The only problem is his driveshaft issue is going to be in the front instead?

LSXEric · 01-20-2010, 08:29 PM

Quote:

Originally Posted by jeepfreek

This would be a good idea for a full on comp setup for sure! The only problem is his driveshaft issue is going to be in the front instead?

Well, depends on how much it is extended by. With the dig he needs 76mm so 82mm would be a 6mm extension in the rear. I'm not sure of the length needed in the front since I run an axial tranny with a DNA CFX thats nowhere near close to stock creeper driveshaft lengths.

So if you have 88mm space in the front my idea will work.

jakedasnake92 · 01-20-2010, 09:46 PM

What about the CKRC venom drive shaft and yoke upgrade, would those work with the dig unit on it. It doesnt say how long they are so was going to see if anyone has used them with the dig?

crawlercop · 01-21-2010, 12:29 PM

Yep those willl work...all they are is traxxas hardened yokes with traxxas drive shafts...Your local hobby store should have them too. you will have to cut a little off one of the drive shafts, bur they ay plastic so no worries...super strong too...I broke my stock ds first day out...have not broke a traxxas set up yet...Our yokes are 5mm holes just so u know

crawlercop · 01-21-2010, 12:36 PM

you will only have to cut one of the ds's if you have a dig unit...should have clarified

01-06-2010, 08:53 PM	#1
HRDROKN Quarry Creeper Join Date: Nov 2009 Location: Vacaville Posts: 259	Junfac drive shaft.... So I have a set of Junfac drive shafts for my creeper, but the rear is about 8mm too long for the rear with the DIG. So I figure that I will just shorten the rear by about 10mm, well I learned that you can't do that as the shaft key does not extend the length of the outer shafts ID. So that one goes to the scrap pile! I didn't see that Junfac made anything shorter than 82mm...

01-07-2010, 03:32 AM	#2
nstn8 Quarry Creeper Join Date: Oct 2009 Location: Newton Posts: 272	That stinks... I was really hoping to use these on a Creeper with Dig.

01-07-2010, 05:17 AM	#3
Riksss Rock Stacker Join Date: Oct 2009 Location: Canada Posts: 84	I am using the 3racing drive shafts and I also have dig. I just had to shorten one with a saw and file. Junfac do make a short shaft that is sold individualy that should work.

01-07-2010, 08:40 AM	#4
Sheep Shagger Newbie Join Date: Dec 2009 Location: earth Posts: 14	You could just drill and tap a hole on the female shaft and use a small bolt / grub screw as a key. Obviously have to be careful to set it correctly so it catches but doesn't bind. I take it you couldn't have just cut the male shaft down to make the length you needed, but it's a bit late now anyway.

01-07-2010, 10:16 AM	#7
snwchris Quarry Creeper Join Date: Sep 2007 Location: NE Ohio Posts: 267	Traxxas Shafts & Steel Yokes... all I had to do was measure & cut and working like a champ. Alot cheaper & easier then modifing some of those metal shafts

01-07-2010, 02:12 PM	#8
Rockfrog Rock Crawler Join Date: Sep 2005 Location: Duncan, BC, Canada Posts: 750	I am still using a Junfac in the front, but had to swap the rear back to my Traxxas (w/ steel yokes) for the rear so i could cut them down. I was going to shorten my Junfacs down later. Might have to check that one now, as I have the earlier Stainless Steel shafts so they may differ. A quick fix would be to add two grub screws and fill with JB (dip the male shaft in lube so it doesn't stick and slides in and out easily - Oh that's just sounding bad ) to remake the keyway

01-18-2010, 09:23 PM	#9
b00st3d Newbie Join Date: Dec 2009 Location: New Orleans Posts: 42	cant ya just grind it down on a bench grinder and key the whole shaft?

01-19-2010, 07:53 AM	#10
craigerk Newbie Join Date: Jan 2010 Location: Deering, NH Posts: 31	I had the same problem with my axial shafts. I ended up cutting it too small and it would twist when fully compressed. I swapped the males front to rear and they both worked so I just extended the 4 links a little to make them fit. It didn't need much, it would compress but would stick cause it just needed that little bit extra. I'm hoping to just grab some longer links soon.

01-20-2010, 01:03 PM	#11
LSXEric Quarry Creeper Join Date: Sep 2009 Location: TXRCO Posts: 210	Well there is one way to possibly get around this. Make some nice links out of allthread with tubing or derlin, and run a shorter link set up in the front with the longer links in the rear. Fix your drive shaft issue, and help crawling with a 60/40 weight setup.

01-20-2010, 09:46 PM	#14
jakedasnake92 Rock Stacker Join Date: Nov 2009 Location: Socal Posts: 61	What about the CKRC venom drive shaft and yoke upgrade, would those work with the dig unit on it. It doesnt say how long they are so was going to see if anyone has used them with the dig?

01-21-2010, 12:29 PM	#15
crawlercop Newbie Join Date: Dec 2009 Location: hillsboro Posts: 46	Yep those willl work...all they are is traxxas hardened yokes with traxxas drive shafts...Your local hobby store should have them too. you will have to cut a little off one of the drive shafts, bur they ay plastic so no worries...super strong too...I broke my stock ds first day out...have not broke a traxxas set up yet...Our yokes are 5mm holes just so u know

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01-21-2010, 12:36 PM	#16
crawlercop Newbie Join Date: Dec 2009 Location: hillsboro Posts: 46	you will only have to cut one of the ds's if you have a dig unit...should have clarified

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