tranny slipping 00 gmc yukon xl

[GMgypsy401]

Ok need help the other day my trucks tranny line disconnected from the cooler in the grill fluid was everywhere. Put fluids back after I attached. The line with no tools now it slips on drive any ideas was mint b4

 

[taylorsimoneaux]

Mine slipped for a while, then I went through a whole rebuild. Sorry to say, may be the case

 

[BubZX]

warm up the truck and recheck fluid in park with engine running.

 

[GMgypsy401]

Tried that fluid was at second notch so I pumped out some it was very dark should I try Lucas and what did the rebuild cost you I believe I've got the 460

 

[gitrduun]

Tried that fluid was at second notch so I pumped out some it was very dark should I try Lucas and what did the rebuild cost you I believe I've got the 460

mine was two grand with all the shit i have in mine plus a little bit of transfer case stuff