Cruzin Illusion
Keep Crawling in Crawling
Awhile back I was looking for the perfect rear axle lockouts for the berg that I was building. After I weighed my choices, I decided that CKRC's Straight Axle Conversion was my top choice. CKRC's kit had everything I was looking for. An actual straight axle shaft, an axle adapter that would provided optimal clearance and no sharp edges to hang up on the rocks. Needless to say, after a few runs with the crawler, I noticed that the rear tires would wobble back and forth do to the axle shafts being bent. I thought it was just a fluke when my wifes crawler became the same way. I got a hold of CKRC and purchased a replacement set of shafts for the wife and I along with a spare set of shafts. During the Midwest challenge my wife snaped a long side shaft so that took out the spare I had. Again I contacted CKRC and ordered a couple more sets. After bending a substantual amount of the CKRC shafts I contacted Jake at CKRC and told him what I thought the fix could be. He agreed and soon Jake had another machine shop making his shafts. Soon as CKRC had the new improved shafts in stock I order a few sets. After one run those shafts were also bent. So long story short I contacted Steve from RC Axle Master and explained the situation. He was making replacement shafts for the Bully and he was in the process of coming up with a replacement shaft that would work with any type of axle conversion or lockout made for the Berg. I asked if he could have a set built by Worlds so I would not have to worry about changing shafts during the comp. After a week and a half he had them at my door and they are everything he describe plus some. The straight axles are made of 4340 chromoly and will work with the CKRC axle adapter and anyone's rear axle lockouts. They are a 6mm shaft with the M5 thread. If your lockout is getting loose they will not be after the axles are installed. He has a small supply that he can send to people that want them for the World's comp. Send email to rcaxlemaster@embarqmail.com and Steve will give you more info on the axles. These axles will be sold through RPP Hobby once he gets the bearing supply in for the kits.
Here is a write up for the install of RC Axle Master's Berg Rear Replacement Straight Axles:
Here is the inventory with what come in the kit:
1. (1) short side axle shaft
2. (1) long side axle shaft
3. (2) 6mm x 11mm x 4mm bearings
4. (2) 6mm x 10mm x 3mm bearings
5. (2) Brass Spacers (used when using stock knuckles)
6. (4) C-clips
7. (2) 5mm nuts
My assembled axle with CKRC lockouts:
1. Remove the 12mm hex:
2. Remove the knuckles and lockouts, axle adapters, or bolt on lockouts.
(Pictured is the CKRC axle adapter)
3. Remove the inner axle shaft along with the bearing inside the axle tube.
( Pictured is a straight axle from the CKRC kit)
INSTALLATION ON THE 4340 CHROMOLY STRAIGHT AXLE SHAFT:
Installation instructions will very depending on what type of lockout or axle adapter you are planning on running.
1. Install a new 6mm X 10mm x 3mm bearing into the end of the axle tube. Make sure the tube bearing is seated all the way back. There should be a 1mm space from the front of the tube to the bearing.
2. (For CKRC Straight Axle Kit)
a. Replace the 5mm x 11mm x 4mm bearing in the CKRC Axle adapter with a new 6mm x 11mm x 4mm bearing that comes in the kit.
(For those using Lockouts with Knuckles)
a. On the knuckle replace the 5mm x 11mm x 4mm bearing located on the outboard side of the knuckle with a new 6mm x 11mm x 4mm bearing that comes in the kit.
b. Replace the bearing on the inboard side of the knuckle with a brass spacer provided in the kit.
(For those using JP Customs type of lockouts)
a. Install the brass spacer that is in the kit into the lockout.
INSTALLATION OF THE AXLE SHAFT
1. Before installing the axle shaft into the axle tube you will need to install 2 of the C-clips provided into the correct slots depending on what type of lockout you are using.
a. If you are using a CKRC axle adapter you will want to install the C-clips on the most inboard and most outboard slots.
b. If you are using a lockout and knuckle or JP customs type of lockout you will want to install the c-clips on the most inboard and middle slots.
The pictures below show the proper installation of the c-clips when using a CKRC axle adapter.
2. Install the axle shaft into the axle tube.
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Here is a write up for the install of RC Axle Master's Berg Rear Replacement Straight Axles:
Here is the inventory with what come in the kit:
1. (1) short side axle shaft
2. (1) long side axle shaft
3. (2) 6mm x 11mm x 4mm bearings
4. (2) 6mm x 10mm x 3mm bearings
5. (2) Brass Spacers (used when using stock knuckles)
6. (4) C-clips
7. (2) 5mm nuts
My assembled axle with CKRC lockouts:
1. Remove the 12mm hex:
2. Remove the knuckles and lockouts, axle adapters, or bolt on lockouts.
(Pictured is the CKRC axle adapter)
3. Remove the inner axle shaft along with the bearing inside the axle tube.
( Pictured is a straight axle from the CKRC kit)
INSTALLATION ON THE 4340 CHROMOLY STRAIGHT AXLE SHAFT:
Installation instructions will very depending on what type of lockout or axle adapter you are planning on running.
1. Install a new 6mm X 10mm x 3mm bearing into the end of the axle tube. Make sure the tube bearing is seated all the way back. There should be a 1mm space from the front of the tube to the bearing.
2. (For CKRC Straight Axle Kit)
a. Replace the 5mm x 11mm x 4mm bearing in the CKRC Axle adapter with a new 6mm x 11mm x 4mm bearing that comes in the kit.
(For those using Lockouts with Knuckles)
a. On the knuckle replace the 5mm x 11mm x 4mm bearing located on the outboard side of the knuckle with a new 6mm x 11mm x 4mm bearing that comes in the kit.
b. Replace the bearing on the inboard side of the knuckle with a brass spacer provided in the kit.
(For those using JP Customs type of lockouts)
a. Install the brass spacer that is in the kit into the lockout.
INSTALLATION OF THE AXLE SHAFT
1. Before installing the axle shaft into the axle tube you will need to install 2 of the C-clips provided into the correct slots depending on what type of lockout you are using.
a. If you are using a CKRC axle adapter you will want to install the C-clips on the most inboard and most outboard slots.
b. If you are using a lockout and knuckle or JP customs type of lockout you will want to install the c-clips on the most inboard and middle slots.
The pictures below show the proper installation of the c-clips when using a CKRC axle adapter.
2. Install the axle shaft into the axle tube.
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