Thread: tranny id?
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Old 02-07-2007, 04:59 PM   #13
Captkaos
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Join Date: Dec 1999
Location: Birmingham, AL
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Re: tranny id?

4L60 was rated based on 100K miles, from what I gather, not brand new. It has been used on trucks up to 8600lbs, this is on FACTORY motors.

1/2T in our bodystyle were rated for 6100 GVW

GM has also stated that the Dextron III is lifetime trans fluid...
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1987 R10 twin turbo LS
1991 R3500 SRW CrewCab
1985 K5 diesel swapped project
1989 K5 2WD conversion w/ Vette susp Project
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