PDA

View Full Version : Mack DT 3rd rebuild


SmallHaul
09-14-2010, 10:08 PM
First build the little VMG axles were too weak:

http://i240.photobucket.com/albums/ff66/scottmaxxin/1010229.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/P1010276.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/P1010265.jpg

Second build worked great but, I wanted more off-road traction.

http://www.youtube.com/watch?v=kn_ALo_UnPw

I wanted to add a driven axle to the front so I made a dual output shaft box for the back of my Tamiya trans which I posted on another thread:

http://i240.photobucket.com/albums/ff66/scottmaxxin/end-tranny.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/side2-tranny.jpg

I have the front axle & trans finished, I'll post up more pics soon.

SmallHaul
09-14-2010, 10:34 PM
The transfer unit that I made is done but, I won't seal it up with silicone until I abuse it for a while.

http://i240.photobucket.com/albums/ff66/scottmaxxin/tranfer.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/tranfer2.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/bottom.jpg

I also dropped the trans down so that the cab would sit right on the frame.

http://i240.photobucket.com/albums/ff66/scottmaxxin/motortrans.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/cableft.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/cableft2.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/cabrear.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/cabright.jpg

SmallHaul
09-14-2010, 10:40 PM
I bought the 10" Dump that FGD was selling for it.

THANKS FRED!

http://i240.photobucket.com/albums/ff66/scottmaxxin/mleft.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/mfront.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/mrear.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/mrear2.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/mright.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/munder.jpg

I still have a lot of work to do. The bed is just sitting on the frame. I have to make the cable lift system for it, find better steps, tanks & front bumper.

fhhhstix
09-14-2010, 10:42 PM
Scott the truck is comeing together nicely and you are going to realy like the front driven axle.

Travis

Semi Joe
09-15-2010, 07:01 AM
looking really good man!!!

FreddyGearDrive
09-15-2010, 07:30 AM
That baby looks scale now.Super nice job lowerin the cab to where it belongs. Only one problem.You might have to change your forum handle.
Something like large haul. Can your skid steer load that workhorse? Or do you have to ramp it?
Keep up the good work!
FGD

SmallHaul
09-15-2010, 08:29 AM
Thanks Joe!

Thanks Travis, I can't wait to get it finished so I can see how well it does off road.

That baby looks scale now.Super nice job lowerin the cab to where it belongs. Only one problem.You might have to change your forum handle.
Something like large haul. Can your skid steer load that workhorse? Or do you have to ramp it?
Keep up the good work!
FGD

Thanks Fred! No, the skid steer would never reach. I could load it with the dragline in about 15 minutes..:rolleyes: I think I'll need a front end loader soon.:)

Claus
09-15-2010, 09:01 AM
Thanks Joe!

Thanks Travis, I can't wait to get it finished so I can see how well it does off road.



Thanks Fred! No, the skid steer would never reach. I could load it with the dragline in about 15 minutes..:rolleyes: I think I'll need a front end loader soon.:)


Will you be converting a Tonka Mighty Loader? That would be cool!

Claus
09-15-2010, 09:03 AM
I forgot, Awesome Truck!!

Rogue
09-15-2010, 10:09 AM
This is going to be a nice looking dump. Much better looking with that cab dropped down where it should be.

Espeefan
09-15-2010, 10:59 AM
I agree. Sweet little dump truck, even though it's not that small! Bigger then the Tonka converted one you did. :D

Tamiya Cowboy
09-15-2010, 05:03 PM
Very cool little rig by far the best looking Mack bruder yet..Great work!

SmallHaul
09-15-2010, 10:43 PM
Thanks a LOT Fellas for all of the positive remarks!

I just got some needed parts from Greg (Losiassociated) today to keep moving on the rebuild.

I still need to come up with nice bumpers for it front and rear. I might look for some 1/4" aluminum and try to make a front bumper. But, I'll probably get the dump working first to make sure it is ready to haul at the Brookville meet.

chaseracer
09-15-2010, 11:15 PM
truck is looking great, the new box fits on there nice. really like the transfer case, nice and simple.

ihbuilder
09-16-2010, 06:17 AM
:eek:now that box makes the difference :thumbsup: great work Scott ;)

IHSteve

JAMMER
09-16-2010, 06:58 PM
Scott your Granite looks great keep[p up :)the good work. Ed

SmallHaul
09-16-2010, 09:20 PM
Thanks All!

I got some more done. It really needed a new frame so, I used a set of stock KH rails. You can really see how short it is when it is sitting on the uncut frame.

http://i240.photobucket.com/albums/ff66/scottmaxxin/3-2.jpg

I looked at a bunch of pics on the net to get the rear length right, I am happy with it.

http://i240.photobucket.com/albums/ff66/scottmaxxin/4-1.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/5-1.jpg

Still needs tanks & steps. I found some pics of Granite DT's that have long slim tanks that I am guessing is for better ground clearance and I might make something like that.

http://i240.photobucket.com/albums/ff66/scottmaxxin/6-1.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/7-1.jpg

I did make a set of pipes using King & knight exhaust parts.

http://i240.photobucket.com/albums/ff66/scottmaxxin/2-2.jpg

SmallHaul
09-26-2010, 04:11 PM
Made some more progress. I got Fulda tires for it and filled them with bb's and glued them with CA. So far the truck weighs about 9 lbs without the battery.

http://i240.photobucket.com/albums/ff66/scottmaxxin/bumperleft.jpg

I also made a hefty front bumper for it (1/8" thick aluminum stock) and used solid 1/4" square stock running inside the frame rails to make it nice & strong.

http://i240.photobucket.com/albums/ff66/scottmaxxin/bclose.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/b2.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/b3.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/bront.jpg

Claus
09-26-2010, 05:03 PM
Truck looks great! The tires look the part for sure. A tilt top tag trailer would look really good in tow.

Tamiya Cowboy
09-26-2010, 05:03 PM
Oooooooo big old cow killer I like it nice work!

Snochaser
09-26-2010, 05:04 PM
Man I like the bumper! The whole truck really looks sharp! Nice Job.

SmallHaul
09-26-2010, 08:31 PM
Thanks Fellas, it was fun making the front bumper.

I did stress the drive train for a while by dragging a 5 pound iron weight around the yard for about an hour and it held up well.

Losiassociated
09-27-2010, 04:49 AM
Holy bumper Scott.
And 9 pounds!geezzzzz!

JAMMER
09-27-2010, 08:45 AM
Scott your mack is taking shape looks real good I like it. Ed:cool:

mog
09-28-2010, 02:27 PM
wow that thing should be able to hall and then some you should have lots of good years of work.

fhhhstix
09-28-2010, 06:52 PM
Scott you are doing a fantastic job on the Mack. I hope you are comming to the Oct meet at brookvile I would like to see it in action.

Travis

Bigrigger
09-28-2010, 07:01 PM
Sweet bumper man! Love the pipes and tires too!

SmallHaul
09-29-2010, 06:25 PM
Yea, she is getting heavy Greg.

Thanks Ed

I hope so Mog!

Thanks Travis, I hope to have it ready for Brookville.

Thanks A lot trucker!

SmallHaul
09-29-2010, 06:30 PM
I just realized I didn't put this in the Construction Equipment section. Can one of the Moderators move it? Thanks!

ihbuilder
09-29-2010, 07:26 PM
I just realized I didn't put this in the Construction Equipment section. Can one of the Moderators move it? Thanks!

Your fine Scott ,it could be here or there . It is a truck ;)

IHSteve

SmallHaul
10-05-2010, 05:26 PM
More progress. We have lift.

http://www.youtube.com/watch?v=F5Z5E8HXqQk

ihbuilder
10-05-2010, 06:20 PM
good job Scott : thumbsup : looks like you need a water truck soon :p

IHSteve

SmallHaul
10-06-2010, 06:56 AM
good job Scott : thumbsup : looks like you need a water truck soon :p

IHSteve

Noooo... no more projects!:D

Thank Steve:)

9W Monighan
10-06-2010, 07:38 AM
Man that truck sure looks nice. That should surely climb some steep haul roads.

SmallHaul
10-06-2010, 09:34 AM
Thanks Steve.

Here it is covered in dirt:

http://i240.photobucket.com/albums/ff66/scottmaxxin/Dirty1.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/dirty2.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/dirty3.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/dirty4.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/dirty5.jpg

SmallHaul
02-20-2011, 06:36 PM
Here is a cool video I found that somebody took at the Cabin Fever show. The hill that the Mack climbs near the end is very steep. The little kid sitting in the chair on the right flipped out when he first saw the Mack and his Grandmother said " What kind of truck is that?" and the little boy said with great confidence "Thats a MACK!" :)

http://www.youtube.com/watch?v=a9Q7uqFmBlw

kcusumano
03-19-2013, 04:57 PM
I love that truck looks awsome

MACK Daddy
03-19-2013, 06:14 PM
Always love a good Mack build....Nice to see this thread brought back up....Oldie but a goodie ...


Alfy

Bigrigger
03-19-2013, 08:45 PM
Agreed. This build is a classic! This bump is worthy of a present-day pic!

SmallHaul
03-20-2013, 07:11 AM
I love that truck looks awsome

Thank You.:)

Always love a good Mack build....Nice to see this thread brought back up....Oldie but a goodie ...

Thank Alfy.


Alfy

Agreed. This build is a classic! This bump is worthy of a present-day pic!

Thank you, i'll post one up.

ihbuilder
03-20-2013, 07:56 AM
Thank You.:)





Thank you, i'll post one up.

oh wait till I load it with the 990 :D

SmallHaul
03-20-2013, 11:44 AM
oh wait till I load it with the 990 :D

Your 990 could probably lift my Mack up and put it into the back of an ADT..:D

Kaf343
03-20-2013, 11:50 AM
Seeing this again is always worth another thumbs up. Nice work on it Scott.

ihbuilder
03-20-2013, 12:11 PM
Your 990 could probably lift my Mack up and put it into the back of an ADT..:D

It'll lift the wedico 966 like nothing :D

DaBomb6988
03-20-2013, 01:19 PM
I love Mack builds too! Are you using tamiya axles? I want to build my own Mack and like the way your truck looks.

SmallHaul
03-20-2013, 01:53 PM
Seeing this again is always worth another thumbs up. Nice work on it Scott.

Thanks Keith.

I love Mack builds too! Are you using tamiya axles? I want to build my own Mack and like the way your truck looks.

Yes, all Tamiya axles. Thank You.

hammer
03-20-2013, 03:18 PM
This is a sweeeeeeet Mack great job.

TONY

kdz76
03-20-2013, 05:45 PM
very nice truck great work

SmallHaul
03-26-2013, 09:24 AM
Agreed. This build is a classic! This bump is worthy of a present-day pic!

I forgot to post a recent pic up.

http://i240.photobucket.com/albums/ff66/scottmaxxin/IMG_4493_zps51eb06b7.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/IMG_4489_zpsa9d5560d.jpg

http://i240.photobucket.com/albums/ff66/scottmaxxin/IMG_4488_zps1a22352e.jpg

The Mack has seen a lot of abuse in the last 2 years but, nothing has really been changed on it. I am now happy the way it is.

It has had 2 failures since it was rebuilt. 2 years ago at the National Pike and Steam show i kept overloading it and the cable snapped where attaches to the servo. I went to my local hunting & fishing store and got some 200+lb fishing line so, i think that problem is solved.

Then last year at the NP&S show i wanted to include all of the kids that were watching us run our vehicles so, i had them fill the Mack with rocks and i would haul them to the top of the dirt mound and dump them over the edge...well after doing that for probably 5 or 6 hours something in the drive-train started slipping...turned out i used an aluminum sleeve in between one of the bearings and shaft for the transfer case and the stress of hauling the rocks up the steep hill extruded the aluminum bushing out into a thin tube. So, all i had to do was make a brass bushing to replace it. I think that says a lot for how strong the tamiya axles are because (knock on wood) i haven't had any problems with them.

I enjoy stressing it until it breaks though because it gives me an excuse to work on it and improve it.

Claus
03-26-2013, 09:52 AM
That is a great truck Scott, just for bragging rights have you thought about adding locking diffs?

SmallHaul
03-26-2013, 12:28 PM
That is a great truck Scott, just for bragging rights have you thought about adding locking diffs?

Thanks. I did research how to make locking diffs but, the way it is now i replaced the diff shims with rubber discs that i made to pressure the spider gears and it works nice as a limited slip. When experimenting with locked axles the problem was it was hard to turn when the truck was fully loaded with dirt or rocks. With the limited slip setup the diffs slip more like an open diff when fully weighted.

SmallHaul
03-26-2013, 12:41 PM
This is a sweeeeeeet Mack great job.

TONY

Thanks!

very nice truck great work

Thank You very much.

Diesel Demond
03-26-2013, 07:18 PM
i love this truck looks tough and rugged! my son has a bruder dump truck wonder if he will notice it missing?? would like to see some build pics!!

SmallHaul
03-27-2013, 04:12 AM
i love this truck looks tough and rugged! my son has a bruder dump truck wonder if he will notice it missing?? would like to see some build pics!!

Thank You very much! Most of the pictures i took are in this thread. If you have any questions or want pictures of certain areas just let me know. The Bruder Mack cab looks so cool.. build it!

Diesel Demond
03-27-2013, 06:28 AM
yeah i agree that thing screams work horse. i bet my son would rather control it then put miles on his knees. ill half to ask him.

rusty47
01-15-2015, 11:26 PM
Small haul I am doing a conversion on a mack right now and was wondering if you hinged your hood or not. The way you have the truck setup looks absolutely perfect! Hoping mine will turn out half as good as yours

SmallHaul
01-16-2015, 11:01 AM
Small haul I am doing a conversion on a mack right now and was wondering if you hinged your hood or not. The way you have the truck setup looks absolutely perfect! Hoping mine will turn out half as good as yours

Rusty, Thank You very much. It is not hinged because it would hit the large bumper. It is quite secure though sitting behind the bumper and having the stock bruder hood straps on.

I also added lights recently. If you skip to 1:40 mark it is easier to see the light setup.

https://www.youtube.com/watch?v=-EAmaSTLXmU

rusty47
01-16-2015, 04:07 PM
I've seen the video and love it. Looks great and sounds awesome.

Claus
02-16-2016, 03:58 PM
Scott how is this truck holding up after all these years? Have you ever broke any of the drivetrain? Are your axles locked?

One of the Classic builds.

Bo Wallen
02-16-2016, 05:50 PM
Looking Good Scott. I like that old workhorse keep going Sir. :cool:

SmallHaul
02-16-2016, 06:26 PM
Scott how is this truck holding up after all these years? Have you ever broke any of the drivetrain? Are your axles locked?

One of the Classic builds.

It is holding up nice Craig, the only thing that i had to do it lately was re-glue a couple of tires that spun loose.

The axle are all modified with rubber washers in place of the metal shims in the diffs. The rubber washers force the spider gears together so hard that it acts like a posi rear end but, if you are carrying 15 pounds of dirt and turn sharp the spider gears will turn.

You can really see them all turn in this vid @ 3:50 mark.

https://www.youtube.com/watch?v=_H-dIBU6laM

Last year i had to open one axle up because the posi action was gone and i found the rubber washers were ground to shreds. So, i cleaned it out and made new washers for it. I just took both of the axles out of the king hauler after the Cabin Fever show and did the rubber washer mod to them as well.

Looking Good Scott. I like that old workhorse keep going Sir. :cool:

Thanks Bo. :-)

Supermario
02-16-2016, 06:59 PM
The axle are all modified with rubber washers in place of the metal shims in the diffs. The rubber washers force the spider gears together so hard that it acts like a posi rear end but, if you are carrying 15 pounds of dirt and turn sharp the spider gears will turn.


I hope everyone is paying attention! This is golden RC info to have from one of the best! Great thinking Scott. I'm definitely doing that to my dump truck. I have a 4th spider in there right now so nothing permanent about it and can do this! :cool::)

SmallHaul
02-16-2016, 09:23 PM
Thank You very much Supermario! :o

To make the rubber washers i use regular thickness bicycle inner tube rubber and just cut them to shape and add some fresh grease to the spider gears just before you final assemble.

SmallHaul
02-16-2016, 09:29 PM
I should also add that the tight fit of the rubber washer against the backside of the bevel gear and diff housing also contributes greatly to preventing the spider gears from rotating..it is not just the pressure on the spider gears that makes the mod work. Which is probably why the gears seem to be holding up fine.

Bo Wallen
02-16-2016, 09:46 PM
Right Mario spot on and Scot knows how to drive too. and that is important folks watch the video how to make the hill like it was a minor bump !!! :cool::cool::cool:

doodlebug
02-16-2016, 09:54 PM
Way to innovate!
Cheers!

Claus
02-16-2016, 10:22 PM
Tough little truck Scott!