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"Rubber Duck Mack"(updated finished 7/19/12 ) "Bulldog Mack with a can on the back""


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#41 CDA

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Posted 15 March 2012 - 07:22 AM

Its around 9 or 10 inches longer. You have to pay attention to the spec sheets. Some have bumpers that extend 6" past the front of the hood. Then you have to take into the equasion that prior to 1973, the Back of an R/ DM cab was flat. Post 73 models had I believe 3" added to the back of the cab for more driver room.

#42 pete3522

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Posted 15 March 2012 - 04:46 PM

just tryen to gather all the info i can this will probably be a future build i have some other ones i want to build first

#43 Porky

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Posted 16 March 2012 - 04:22 AM

Hey Guys,,,with a bit of luck I will have a Mack R700 and RL700 hoods soon,,,both will be just the hood conversion to use on the AMT or AMT / Ertl R-Model cabs,,,

#44 pete3522

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Posted 16 March 2012 - 04:24 AM

cool i might keep that in mind price???

#45 Porky

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Posted 16 March 2012 - 04:29 AM

cool i might keep that in mind price???


Not sure on the price until I have them ready but just a hood alone, I think in the 25.00 - 30.00 range

#46 pete3522

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Posted 16 March 2012 - 04:31 AM

ok let me know whats goin on im interested i got 2 rs685 kits comin do u sell the camel back suspensions??

#47 CDA

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Posted 16 March 2012 - 04:42 AM

Hey Guys,,,with a bit of luck I will have a Mack R700 and RL700 hoods soon,,,both will be just the hood conversion to use on the AMT or AMT / Ertl R-Model cabs,,,

Awesome!!!

#48 pete3522

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Posted 23 March 2012 - 03:34 PM

http://Posted ImageI finally got the macks today.I bought a set of 2 pretty reasonable only catch is the frame and chasis"s arent included but i have some some truck frames chasis.s etc the engines etc are in the kit i aint sure if this rd mack had a cummins or the maxidyne engine ???not sure Also do all macks have the camel back rear suspension and the upside down differentionals??(thats what i call them) But did some have a walking beam or air ride suspension as petes ,kws etc have????I was thinken i would just take a pete frame with the air ride put underneath it maybe use the mack engine and scratch build the sleeper i have all the real truck dimensions for the sleeper just have to scale it down .Let me know if any of you know about macks or waht the real rd truck has engine wise etc. Im thinken if i add a 1/4 inch in fornt of one of these hoods it should scale right not sure??http://Posted Image

Edited by pete3522, 23 March 2012 - 03:35 PM.


#49 cappy625

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Posted 23 March 2012 - 04:17 PM

not all macks had maxidynes and camel back suspentions macks that had all mack components where nicknamed pedigres.but mack also sold gliderkits. which were just cab and chassies. the customer could put what ever componets they wanted in it. they where nicknamed mutts. so yes you can have a mack with air ride. and any motor you want. i think the duck had a cummins in it.

#50 pete3522

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Posted 23 March 2012 - 04:35 PM

Thanx for that info anthony i thought it was cummins too now as far as suspenion i am not sure but i might buy the revell peterbilt snap and use the frame and suspension air ride and put a cummins in it i can always use the cat engine for other projects put some 2 whole buds on it that would be a good start

#51 Truck parts

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Posted 23 March 2012 - 04:41 PM

Mack trucks could be built all Mack,engines trans,and rear end.I think they had a gold Mack bulldog on the top of the hood. Silver Mack were on trucks that was not pure Mack.They had fuller trans or something else in the drive line.

#52 pete3522

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Posted 23 March 2012 - 05:28 PM

think i have the hood scaled right its 2 1/8 to make it the rs-700l hood it would have to be 2 1/2 scale inches so i would have to add 1/4 to the back of the hood think i am right i figured that out on a scale calculator

#53 caboverkw

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Posted 23 March 2012 - 06:50 PM

think i have the hood scaled right its 2 1/8 to make it the rs-700l hood it would have to be 2 1/2 scale inches so i would have to add 1/4 to the back of the hood think i am right i figured that out on a scale calculator


The AITM R700's hood measures right at 2 3/4".

#54 pete3522

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Posted 23 March 2012 - 07:07 PM

ok thanx

#55 pete3522

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Posted 23 March 2012 - 07:26 PM

http://Posted Imagethink i am goin to add a 3/4 or a inch to the back of the hood the sleeper is 50" it scales to 2 7/16 " length if igured 3 1/2 inches height width is 3 7/16 i went off the real sleeper measurements then used a scale calculator this i will scratch build when i am sure the measurements are correct i also have to figure the exhaust cut out on the right side

Edited by pete3522, 23 March 2012 - 08:46 PM.


#56 pete3522

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Posted 23 March 2012 - 08:48 PM

i think i will make this out of thin cardboard as a mock up before i build it from styrene

#57 pete3522

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Posted 28 March 2012 - 06:24 PM

http://">Posted Imagehttp://Posted Imagewell i found a convoy mack lot on ebay which was perfect for this build has the resin 2 hole buds resin dual air tanks on the battery boxes also included in this lot was the ertl incorrect convoy mack which some of the parts were already used from it such as the bull bumper the grille wasnt used but to my suprise this mack has a metal western grille?? But any way i got it with a aitm 60" sleeper which the exhaust cut out was made but i will not use this as this would be incorrect! I will scratch build a sleeper. Besides the incorrect almost complete kit i got on this lot was the correct convoy decal sheet from www.modeltrucken.com plus a decal sheet which covers all mack models made then to my suprise a itareli western star was thrown in almost complete think i got a steal for what i paid!! But any way so far i took another hood cause the one that came with it everything was epoxyed in heavily which melted the hood around the headlights and grille so i used one of the hoods out of the previous mack lot i bought i extended it 5/8 of a inch on the back side which i think it looks good as you will see in the pics next i have to fabricate new fuel tanks as the stock step barrel tanks were used which is incorrect.Well heres where i am at so farhttp://Posted Image

Edited by pete3522, 28 March 2012 - 06:29 PM.


#58 pete3522

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Posted 28 March 2012 - 06:31 PM

herehttp://Posted Images the hood

#59 pete3522

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Posted 11 April 2012 - 03:18 PM

http://Posted Imagehttp://Posted Imagehttp://Posted Imagehttp://Posted Imagehttp://Posted Imagehttp://Posted Imagesome new updates http://Posted Image

Edited by pete3522, 11 April 2012 - 03:25 PM.


#60 Bennyg

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Posted 11 April 2012 - 03:22 PM

Keep at it. Looks good, can't wait to see it finished.
Ben