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How Do I Know What Tranny I Have?

wht98yukon

By wht98yukon
July 8, 2008 in Ask A GM Technician

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wht98yukon

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wht98yukon

Posted July 8, 2008

Posted July 8, 2008

hi, i didntk now where to post this. i got this truck from my brother. it was from texas. its 2wd. has aftermarket oil and trans cooler and a nice traielr brake and nice towing package. i know it has limited slip. are there RPO codes in glove box to find out what tranny it has or to find out by looking at it? Thanks if u can help.

sillyazz

Enthusiast

sillyazz

Posted July 8, 2008

Posted July 8, 2008

Should be an 4L60E

wlvrn1215

Senior Enthusiast

wlvrn1215

Posted July 8, 2008

Posted July 8, 2008

M30 RPO code is a 4l60E

Also to check your RPO codes we have an RPO lookup section. Its the cats meow.

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