Sluggish towing with GMC Yukon
I just picked up a used 2007 Jayco Exp 17C & towed it home last night with my 2011 GMC Yukon SLT. The drive was 2 hrs & lots of hills in TN. I had the tow mode on. It seemed to struggle up the big hil...
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tcc11tcc wrote:6dot6 wrote:
look in the glovebox at the RPO codes.
GU2 2:73 ratio
GU4 3: 08 ratio
GU5 3:23 ratio
GU6 3:42 ratio
GT4 3:73 ratio
GT5 4:10 ratio
GQ1 Open Differential Rear Axle
G80 Positraction/Locking Rear Axle
Good info. There was a GU4 and a G8. So does that mean 3: 08?
yeah looks that way. and you mean g80 right? atleast you have a factory locker for the rear. although not the best in the world they are OK for stock. i havent blown mine up yet in my dually and im at 640/1300 at the wheels.
