Supreme Reign
Well-Known Member
I have the same problem. They will easily fit a TXT or Jugg. I have 2 of the 3905 E-Maxx 16.8v trannies, 2 E-Revo trannies, and 2 Summit 2-speed trannies(yum). No one makes motor mounts, though. Devastator2000 could likely make them if you send him the tranny. I just never had the cash to do so.
Do you mean tranny mounts? If so here are some from rc4wd:
http://www.rc4wdstore.com/2/product_info.php?products_id=88&osCsid=91d6ec7706a34f80f40f213d749581b6
http://www.rc4wdstore.com/2/product_info.php?products_id=88&osCsid=91d6ec7706a34f80f40f213d749581b6
HawnMT
Well-Known Member
Those are for the older style emaxx transmissions.
I run the newer style E-Revo transmission in my TXT race truck. It's a custom chassis but it's actually narrower than a stock TXT chassis and I run the tranny upside down to have the motor on the bottom.
I've also built a few stock chassis'd TXTs with the older style Emaxx transmission and since the newer style has the motors smashed tighter together I have to believe it's narrower than the old one. Even though the new trans is 2/3 the height of the old one I can't see there being a problem with the motors being in the way of the links or anything.
Now if it were the Summit/E-revo single motor or E-revo dual motor configurations there may be a problem because one of the motors sticks way far out and may hit the links or bump the driveshafts when the suspension compresses.
Motor glitches
I stripped the gears twice on the same charge of these batteries because of a glitch. Once it was just sitting on the ground, got a glitch, and stripped a gear. The second time it was just on its back, with brand new gears.
I think I will get the new transmission and try to make up a set of mounts.
I stripped the gears twice on the same charge of these batteries because of a glitch. Once it was just sitting on the ground, got a glitch, and stripped a gear. The second time it was just on its back, with brand new gears.
I think I will get the new transmission and try to make up a set of mounts.
Supreme Reign
Well-Known Member
HawnMT, can you make the these mounts to fit in a stock Jugg/TXT chassis? How much cheddar would we be talking about? RC4WD already told me they have better things to do than bother with making these mounts.
http://www.rcmt.biz/bd/member.php?u=1239
AirForceOne
Well-Known Member
Ditto, I would be interested in this as well. :wish
HawnMT
Well-Known Member
I wish I could say they were something special but really they're just like those ones from RC4WD just with a different geometry since the trans has different mounting points and sits differently in my chassis. I even used the same aluminum angle that I made the mounts for my older emaxx/txts with. I did have to shave those little "bumps" on the trans nears the holes. Supreme will know what I'm talking about. I'd take a pic of the mount but it's buried under wires, links, the esc, and receiver.
Supreme Reign
Well-Known Member
Don't put yourself down. The RC4WD are nothing more than angled aluminum with cuts for the screws. Nothing special, but well done. I don't have the tools or time to make these, so I would gladly pay someone to make them. Those bumps on the tranny are easily shaved down with a dremel. Anyone that has owned a Clod, Jugg, or TXT should be familiar with shaving down the pegs on the knuckles to get more steering, so this should not be a big deal. If you can make more, then you would make a few people very happy:tmbI wish I could say they were something special but really they're just like those ones from RC4WD just with a different geometry since the trans has different mounting points and sits differently in my chassis. I even used the same aluminum angle that I made the mounts for my older emaxx/txts with. I did have to shave those little "bumps" on the trans nears the holes. Supreme will know what I'm talking about. I'd take a pic of the mount but it's buried under wires, links, the esc, and receiver.
Can you post a pic of your truck that has this tranny. I don't need to see the mounts. I've just never seen a TXT equipped with with one of the 3905 trannies.
HawnMT
Well-Known Member
Supreme, the trans is on my Joeworks V3.0 race truck:
http://www.rcmt.biz/bd/showthread.php?t=13116
Tad here's some pics: on the left is the original style emaxx trans. In the middle is the newer style with the single motor configuration. On the right is the E-revo dual motor(motors are opposite each other) configuration. Missing is the EMaxx dual motor configuration which kinda is like the old style but the motors are staggered.
And here's a shot of the trans mounting surface. There are 4 holes instead of 8 and I had to notch the mount around the trans so I had enough material around the holes. Also in the center you can see the arrow shaped "bump."
http://www.rcmt.biz/bd/showthread.php?t=13116
Tad here's some pics: on the left is the original style emaxx trans. In the middle is the newer style with the single motor configuration. On the right is the E-revo dual motor(motors are opposite each other) configuration. Missing is the EMaxx dual motor configuration which kinda is like the old style but the motors are staggered.
And here's a shot of the trans mounting surface. There are 4 holes instead of 8 and I had to notch the mount around the trans so I had enough material around the holes. Also in the center you can see the arrow shaped "bump."
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wont fit
I just got the transmission, and I do not see any way to make it fit in the stock chassis. There is a shaft sticking out of the back, and the spur gear is offset from center. I cannot find a position to mount it that doesn't have it sticking out the bottom. I do not want to change the chassis, so I will probably get the older style transmission. I wanted this one because it is stronger, and has a better clutch, but it just wont work.
I just got the transmission, and I do not see any way to make it fit in the stock chassis. There is a shaft sticking out of the back, and the spur gear is offset from center. I cannot find a position to mount it that doesn't have it sticking out the bottom. I do not want to change the chassis, so I will probably get the older style transmission. I wanted this one because it is stronger, and has a better clutch, but it just wont work.
HawnMT
Well-Known Member
Did you get the emaxx motorplate? Which shaft are you referring to? There's one that sticks out a little that has a hole in it but that's just to hold the shaft when your locking down the nut for the slipper clutch. I've never tried mounting it in a stock chassis but I know it can't be a width problem because it's narrower than the old style. Is it because the links are in the way?
interference
The problem is that the spur is offset so much. I have the 2 motor motor plate, but I took it off to try to see if I could get it in any kind of way, and I cant.
That shaft that sticks out the back hits the round tubing brace for the chassis. The spur gear wants to hit the battery tray. The transmission output shaft gets too close to the sway bar. Even if the links and things were not in the way, it would be sitting off to one side of the truck, and the mount would be a very odd shape, and it would still hang down below the chassis.
I tried to mount it upside down, but again everything seems to be in the way.
I may try to pick up the older style trans, and mount the good slipper on it. That is my main issue, I need a good slipper to protect everything else. The old style tranny may fit, but has a very weak clutch, and weak idler.
Im thinking this high power motor may be more trouble than it is worth, for this truck.
The problem is that the spur is offset so much. I have the 2 motor motor plate, but I took it off to try to see if I could get it in any kind of way, and I cant.
That shaft that sticks out the back hits the round tubing brace for the chassis. The spur gear wants to hit the battery tray. The transmission output shaft gets too close to the sway bar. Even if the links and things were not in the way, it would be sitting off to one side of the truck, and the mount would be a very odd shape, and it would still hang down below the chassis.
I tried to mount it upside down, but again everything seems to be in the way.
I may try to pick up the older style trans, and mount the good slipper on it. That is my main issue, I need a good slipper to protect everything else. The old style tranny may fit, but has a very weak clutch, and weak idler.
Im thinking this high power motor may be more trouble than it is worth, for this truck.
NickRummy
Well-Known Member
It's probably to late for these to help you guys now but thought I'd post to help others anyway. Here's a front view of the difference between the 3905 and 3906 transmissions.
I attached a quick template that I drew and used to make the mounts for my 1/6th Chevy. It's not exact but it's really close. My chassis plates were 3.5" inside so that's why it's dimensions the way it is.
I attached a quick template that I drew and used to make the mounts for my 1/6th Chevy. It's not exact but it's really close. My chassis plates were 3.5" inside so that's why it's dimensions the way it is.
