Join Date: Jul 2000
Location: southern new jersey
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Re: M715 or M725 as a Towing truck ?
I looked into building a 715 for my pickup truck. But i found my dodge before i could get really into it. This is what i planned and some i have.
Start with a 715 with a rusty cab, smashed front end, a perfect front clip in the bed and a bed and to die for.(that i have)
Loose the 715 cab and put in its place a j-truck cab.
Loose the motor and trans.
Use either a injected 460 ford or a injected 454 chevy. Hook a 2wd auto behind the motor and use the stock tcase (maybe).(i had access to either motor)
To solve the wheel and gear problem, i planned to have a set of 20in rims made. That way i could run a 8.25X20 or 9.25x20 truck tire.
Now for running a stock 715 towing, forget it. Unless you like back roads and dont mind going 45 mph.
There really isnt anything wrong with the rears if the truck is used as just a truck. They just have a bad rep, the front is closed knuckle and nobody likes them. For just normal towing and being used as a truck the rears are just fine.
We had those rears in that tuff truck/mini moster truck i work on, they lasted two years. Yeh we snapped a few rear axles. But the motor pushes an easy 700 horse and either runs 44 boggers or 46X22 tractor tires. The only way we could break the front was to get major air and then snapped the knuckle off of the rear. You cant get much more abuse then what that rig will put on something. Now the truck rides on early 2 1/2 ton rears. They arent the toploader rears though. Those we havent broken anything yet, but the axles are huge.