TRX-1 hodgepodge - Bandit, Rustler, Slash gearbox parts?

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TRX-1 hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by Frankentruck »

I think I'm going to have a lot of trouble finding a complete TRX-1 gearbox for my buggy. While searching, it looked to me like I might be able to make a Bandit gearbox work. I actually thinking of a modified RPM Bandit gearbox so I would get an aluminum motor plate. But I need some measurements. Does anyone have one of these gearboxes sitting around and could take precision height and width measurements for the front of it?
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Re: Bandit, Rustler, Slash gearbox

Post by TRX-1-3 »

You could get TRX-3 trans case, a pro ball diff kit, top shaft/top gear, idler, and slipper components. But then you would need to source a motor plate or modify one.
Hope you're doin' something fun.

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Re: Bandit, Rustler, Slash gearbox

Post by Frankentruck »

The eBay prices on the individual gearbox parts seem pretty high. But even the path I'm looking at could get close to $100 for all new parts. Maybe I should just put a Stealth gearbox there and be done with it. 🤣
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Re: Bandit, Rustler, Slash gearbox

Post by Dangeruss »

Frankentruck wrote: Mon Oct 30, 2023 7:28 pm ...Does anyone have one of these gearboxes sitting around and could take precision height and width measurements for the front of it?
Taken with digital vernier calipers...

Height is 37mm/1.45in

width... depends on where you measure as the case is tapered.... 23.9mm/.94in at the bottom 23.4mm/.92in at the top

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Re: Bandit, Rustler, Slash gearbox

Post by Frankentruck »

The width is great but unfortunately the height is about 0.5" too tall. Bummer. Thanks for the measurements.
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Re: Bandit, Rustler, Slash gearbox

Post by Dangeruss »

Frankentruck wrote: Tue Oct 31, 2023 12:00 pm The width is great but unfortunately the height is about 0.5" too tall. Bummer. Thanks for the measurements.
Bummer indeed. Very welcome though. Would cutting down the nose of the gearbox be an option?

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Re: Bandit, Rustler, Slash gearbox

Post by Frankentruck »

I'm considering the next option. It might still involve Bandit parts.
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Re: TRX-1 gearbox hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by Frankentruck »

Does any of these work for a TRX-1 gearbox:

TRA4620 ball diff
TRA2380 gear diff
MIP 8116 ball diff
TRA2520 ball diff
TRA4420 ball diff
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Re: TRX-1 gearbox hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by TRX-1-3 »

Frankentruck wrote: Thu Nov 09, 2023 1:50 am Does any of these work for a TRX-1 gearbox:

TRA4620 ball diff
TRA2380 gear diff
MIP 8116 ball diff
TRA2520 ball diff
TRA4420 ball diff
The 2520 "pro ball diff kit" would work as far as most of the diff, I think it comes with two diff gears, one for the 272 application and one for the TRX-1/3/TCP application(s). So maybe all of the diff is in that bag. The old 4620 is originally for the Rad2's,Eagles, etc. And os not compatible. The 2520 is essentially a TRX-1 diff with a 272 diff gear thrown in the bag. Please double check though as I've never purchased a 2520. Check out this post/thread:

https://www.rc10talk.com/viewtopic.php?p=554852#p554852
Hope you're doin' something fun.

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Re: TRX-1 gearbox hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by Frankentruck »

The 2520 pro diff seems to be just what was needed, although it's a little sloppy from side to side. In metric-ness, it's about 0.81mm total looseness. I might add a little shim to each put shaft.
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Looking closer at my rolling chassis, the shocks look a lot like RC10 team car shocks with different tops. Hmmmm....
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Re: TRX-1 gearbox hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by jwscab »

Those Traxxas shocks are nice and smooth. Pretty much copies of associated construction.

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Re: TRX-1 hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by TRX-1-3 »

+1 with the shocks. If you want "official" shims/"washers", TRA 1985.
https://m.traxxas.com/products/parts/1985
They come in handy with the rear stub axles as well.
Hope you're doin' something fun.

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Re: TRX-1 hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by Frankentruck »

I came across a nice, one owner, mostly complete TRX-1 in a lovely shade of Kermit the Frog green. It came with a really nice motor plate too. However, some slight difference between the TRX-3 gearbox and a TRX-1 gearbox mean the TRX-1 motor plate only works with a TRX-1 gearbox. Well crap, now I have another TRX-1 that needs parts too. But at least it's green?🤦‍♂️
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1000009263.jpg
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Re: TRX-1 hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by TRX-1-3 »

Frankentruck wrote: Tue Jan 23, 2024 10:56 pm I came across a nice, one owner, mostly complete TRX-1 in a lovely shade of Kermit the Frog green. It came with a really nice motor plate too. However, some slight difference between the TRX-3 gearbox and a TRX-1 gearbox mean the TRX-1 motor plate only works with a TRX-1 gearbox. Well crap, now I have another TRX-1 that needs parts too. But at least it's green?🤦‍♂️
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1000009240.jpg
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1000009263.jpg
Well, now you have to build a shelfer, with that trans and motorplate as the foundation.
Hope you're doin' something fun.

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Re: TRX-1 hodgepodge - Bandit, Rustler, Slash gearbox parts?

Post by Frankentruck »

Kermit is pretty well cleaned up, but now I need to figure out what to do for front wheels.
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The rears here are Bandit 2474 pin drive wheels, but the matching Bandit 2475 are also a pin drive wheel. I would prefer the fronts to be the old fashioned bearing in wheel setup. Any thoughts what I might use?
Frankensteined RC10T3 / Franky Jr RC10GT-e (x2) / A+ stamp / Toy Story RC / Graphite replica / B1.5 BFG 5LTi / Clonewald / Hyper Hornet

"I love the effort, but it sure looks like you took the long way around to a tub again"

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