Monster GT Conversion With A Center Diff

[Chadworkz]

Thanks!

My brain is constantly thinking about custom projects and various things, so I was seeing how the MGT arms compare to the Maxx arms for a possible custom project down the road.

[The Dude]

you see right Krawlin (and you really help me for explain this ) I just add the spring.. I found this idea on MaximumMT ( french forum ...and here if you want to see some pics of my MTA4)

and do you think we can mount a MAXX A-arm on MGT ?? (I'm thinking about the true track kit form RPM )

[Krawlin]

Alright, some exact MGT arm measurements for ya....


Lower arm width at hinge pin holes - 1.910'', 48.51mm

Lower arm overall length from tip to tip - 5.406'' (5 13/32''), 137.312mm

Upper arm width at hinge pin holes - 2.755'', 69.977mm

Upper arm overall length from tip to tip - 4.945'', 125.603mm


Lower arm has 3 stubs for the hinge pin to go through, Maxx has 2. Upper arm have 2 small stubs and 1 large stub for the hinge pin to go through, Maxx has 4 small ones. Maxx upper arm has material running between the shocks, MGT stock upper arm does not (RPM MGT arms do though).

Hope this helps some!



One cool property that I found about the MGT arms is they can be melted back together and be used for quite some time after if done right. Not long after I got the truck (about 6 years ago, it was an original .21 MGT), I let my dad try it out, and he ran it into a tree within the first 2 minutes of running it, snapped the upper arm in 2 places. Used a soldering iron with large thin/flat tip, got it nice and hot, stuck it between the two pieces and let them melt pretty good then pulled the iron out and together and clamped the arm in a vice for a few minutes while it cooled. did that with the other area where it snapped and was able to put it all back together and I got quite a few runs from that arm before it snapped again. So with the stock MGT arms, if you want to keep running and don't have a spare and don't want to wait for another one in the mail, that works well in that kind of situation. I've never tried this with RPM arms or stock Maxx arms before though.

[Chadworkz]

Thank you for the measurements, I really appreciate it!

[Krawlin]

Got my new chassis and dog bones in the mail today, putting the truck back together now. Nitrohouse fails though, they don't measure dog bones pin center to pin center apparently, so I bought a 115mm dog bone assuming that it was pin center to pin center length, and it's not, so now I'm thinking it isn't going to be long enough, but I better finish assembling the truck before I jump to conclusions here....

Anyway, here are a few pictures of the new chassis next to the old one -

[Krawlin]

So this Hyper 9 1.o dog bone is too short for sure, just put the truck back together with the center diff where I want it and it's about 5mm short.... I spoke too soon about them being perfect I guess. However, I am going to blame nitrohouse for this one since they do not specify if they measure shafts from pin center to pin center or from tip to tip, and the "normal and most used" method is pin center to pin center, and they measure from tip to tip. I need a dog bone that is 113mm to 115mm pin center to pin center. And this Hyper 9 1.0 shaft is actually 107.5mm pin center to pin center. So the search continues......

[The Dude]

this is a really bad luck....

[nitrostarter]

Why not have Mike make you a dogbone? Or can you find some extended drive cups?

[brushlessboy16]

Cut and sleeve it, do you want that chassis shined' up :)

[Krawlin]

Originally Posted by nitrostarter

Why not have Mike make you a dogbone? Or can you find some extended drive cups?

Seems like he takes quite a while to do custom stuff and I don't really want to wait that long. I have been hunting for some extended drive cups though, no luck yet.

Originally Posted by brushlessboy16

Cut and sleeve it, do you want that chassis shined' up :)

I was thinking about doing that, its finding sleeve with the right inner diameter in a reasonable length (McMaster only sells what I need in 6 foot sections) with a large outer diameter to be strong that seems to be the problem. What McMaster has is .152'' inner diameter tube, which is perfect, but the wall thickness is .049'' / 3/64'' or 1mm, which is relatively small.

[RC-Monster Mike]

Maybe its your lucky day, Krawlin. I happened to see this thread and checked my pile of dogbones(I always make several if I make any) - I happen to have a steel, black oxide coated bone here that is about 114mm pin to pin length - seems perfect according to your posted dimensions. If you want it, you can order 15 of the RC-Monster custom/misc. parts through the store and it will ship Monday. :)

[Krawlin]

Originally Posted by RC-Monster Mike

Maybe its your lucky day, Krawlin. I happened to see this thread and checked my pile of dogbones(I always make several if I make any) - I happen to have a steel, black oxide coated bone here that is about 114mm pin to pin length - seems perfect according to your posted dimensions. If you want it, you can order 15 of the RC-Monster custom/misc. parts through the store and it will ship Monday. :)

Just ordered 15 of the RCM custom/misc. parts and I put "114mm dogbone driveshaft for Krawlin from the RCM Forums" in the box where you say what the part is. Thank you so much Mike! You've saved me alot of time and money with this! I don't know of any other online RC parts stores that have an owner that would do this, seriously, thank you!

[The Dude]

Originally Posted by RC-Monster Mike

Maybe its your lucky day, Krawlin. I happened to see this thread and checked my pile of dogbones(I always make several if I make any) - I happen to have a steel, black oxide coated bone here that is about 114mm pin to pin length - seems perfect according to your posted dimensions. If you want it, you can order 15 of the RC-Monster custom/misc. parts through the store and it will ship Monday. :)

that's really nice !!!

[nitrostarter]

^^ LUCKY!!

Good find Mike!

[Kcaz25]

Yep more than just lucky. Way to go MonsterMike!