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Old 04-10-2013, 04:20 PM   #13 (permalink)
oil pan 4
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Location: NewMexico (USA)
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Sub - '84 Chevy Diesel Suburban C10
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Quote:
Originally Posted by JRMichler View Post
The 2WD truck is several HUNDRED pounds lighter than a 4WD truck. The entire additional weight of the 4WD system is on the front axle. With all that extra weight on the front axle, the rear wheels cannot do much in slippery conditions.

Result: A 4WD truck needs the 4WD, while a 2WD truck does not.
Yes I have found that going 4wd adds at least 300lb minimum on any kind of truck. It can be as much as 500 to 600 pounds on the full size ones.

I have found that for my 6,000lb surburban 100lb makes a difference of 0.1mpg on paper and in the real world as little as 400 to 500lb can knock off 1 full MPG.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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