building M715 w/ engineering margin

olly hondro

Well-known member
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Location
tucson AZ
I have been researching the '715 for two years now. So I have a good feel for what could be improved ; this is the wish list I compiled from M715 owners:

  • The Tornado engine is interesting....but a diesel would be the cat's meow, CAT 3116
  • The D60 front is obsolete and has D44-like knuckles so that is a weakness. MERITOR RF_611
  • Because of the low gearing, bigger tires would be great, but there is the issue of firewall clearance etc. MICHELIN 53" radials
  • The '70 rearend is obsolete. A popular mod is to swap to CUCV pickup axles for the D60/14BFF. MERITOR RS_611
  • The manual gearbox is OK.....ALLISON 7 spd auto
  • The wheels are wierd. 20" HUTCHINSON aluminum
  • The brakes could be bigger. LMTV drums/air brakes
So, anyway, attached is a pic of the "new" M715, (my 6th MV) , an eary '67 winch truck, with the donor chassis in the background that cure many of the ills. No guts no glory...715_1.jpg715_2.jpg
 

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G744

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Hidden Valley, Az
About 25 years ago, a friend of mine put a BBC/TH400 in his 715, along with deuce axles & 14.00-20 rubber.

He did a great job of modding the fenders to handle the tires.

I sold him my only two Rockwell drop-ins in 5.22:1 ratio. Came out of a M35A3 prototype test truck.

Another neat truck from my past where I have no clue where it is today. Drat...

DG
 
Last edited:

olly hondro

Well-known member
805
358
63
Location
tucson AZ
About 25 years ago, a friend of mine put a BBC/TH400 in his 715, along with deuce axles & 14.00-20 rubber.

He did a great job of modding the fenders to handle the tires.

I sold him my only two Rockwell drop-ins in 5.22:1 ratio. Came out of a M35A3 prototype test truck.

Another neat ruck from my past where I have no clue where it is today. Drat...

DG
This truck has a final ratio of 7.80:1. Moves the 16.00 Michelins pretty well ;)
 
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