- Messages
- 92
- Reaction score
- 120
- Location
- Vacaville, CA
- Arrma RC's
- Kraton 6s
- Mojave EXB
- Outcast 4s
- Infraction 4x4
Needed a "build" thread to reach 100% Account Progress, so I decided to make one on something I couldn't find in the search. Credit goes to @rjinaz for the idea / inspiration. He shows the result in his Vendetta build thread, but I wanted to elaborate upon it in case anyone else would like to replicate. This will fit a Vendetta, Infraction Mega, Infraction 3s.
I bought the complete center brace with ball cups and balls from JRC (I recommend buying multiple items from JRC to combine shipping costs):
Arrma LIMITLESS V2 6s - RED Center Brace 309mm & Balls cups infraction ARA7116V2
If you prefer to buy the parts separately, or need to replace a part that was lost or broken, here are the specific Arrma parts:
ARA320502 Center Brace Bar
ARA320501 Arrma 6S BLX Center Brace Ball Cups & Balls
ARA724530 Set Screw (M5 x 30mm)
If you want the official parts to secure it to the shock towers, you can also pick up these:
ARAC9761 Nylon Nut 2.5mm
ARA723305 Cap Head Screw M3x5mm
ARA320529 Center Brace Pin
I wanted to spend the least amount of money possible, so I went to the hardware store to purchase the fasteners:
I also wanted to use as little specialized tools as possible, tools that maybe most people have. So I didn't use a band saw, or drill press. The one uncommon tool I used was purchased from Amazon. It's a metric drill/tap M5 X 0.8:
I started with using a bench grinder to make the ball cups thinner. A handheld grinder, rotary tool, or even sandpaper could do the trick as well:
Next, I fit one end into the shock tower, then laid it down to measure the length and used a razer to scribe a line where I needed to cut. Don't forget to account for the length of the ball cup:
I removed the ball cup, then the stud (Arrma calls it a set screw) using the "double nut" technique with two M5 X 0.8 nuts:
Time for the hacksaw. I held the bar in a vise, but Vise Grips or pliers can substitute:
Didn't use a band saw so off to the grinder to make it even / smooth:
In order to thread in the stud, I needed to drill / tap the proper size hole. I had the tap as part of a tap & die set, but I didn't have the proper size drill bit, so I ordered a combo off of Amazon. I used a hand drill because I was too lazy to use the drill press, and I wanted to keep it simple for those who only have a drill or impact driver. After I cleaned out the hole, I utilized the "double nut" technique again to thread in the stud
I used a screw and nut to secure the bar into the shock towers, instead of the Arrma fasteners. I'm pretty satisfied with the result:
I bought the complete center brace with ball cups and balls from JRC (I recommend buying multiple items from JRC to combine shipping costs):
Arrma LIMITLESS V2 6s - RED Center Brace 309mm & Balls cups infraction ARA7116V2
If you prefer to buy the parts separately, or need to replace a part that was lost or broken, here are the specific Arrma parts:
ARA320502 Center Brace Bar
ARA320501 Arrma 6S BLX Center Brace Ball Cups & Balls
ARA724530 Set Screw (M5 x 30mm)
If you want the official parts to secure it to the shock towers, you can also pick up these:
ARAC9761 Nylon Nut 2.5mm
ARA723305 Cap Head Screw M3x5mm
ARA320529 Center Brace Pin
I wanted to spend the least amount of money possible, so I went to the hardware store to purchase the fasteners:
I also wanted to use as little specialized tools as possible, tools that maybe most people have. So I didn't use a band saw, or drill press. The one uncommon tool I used was purchased from Amazon. It's a metric drill/tap M5 X 0.8:
I started with using a bench grinder to make the ball cups thinner. A handheld grinder, rotary tool, or even sandpaper could do the trick as well:
Next, I fit one end into the shock tower, then laid it down to measure the length and used a razer to scribe a line where I needed to cut. Don't forget to account for the length of the ball cup:
I removed the ball cup, then the stud (Arrma calls it a set screw) using the "double nut" technique with two M5 X 0.8 nuts:
Time for the hacksaw. I held the bar in a vise, but Vise Grips or pliers can substitute:
Didn't use a band saw so off to the grinder to make it even / smooth:
In order to thread in the stud, I needed to drill / tap the proper size hole. I had the tap as part of a tap & die set, but I didn't have the proper size drill bit, so I ordered a combo off of Amazon. I used a hand drill because I was too lazy to use the drill press, and I wanted to keep it simple for those who only have a drill or impact driver. After I cleaned out the hole, I utilized the "double nut" technique again to thread in the stud
I used a screw and nut to secure the bar into the shock towers, instead of the Arrma fasteners. I'm pretty satisfied with the result: