[campermax]

I still have overheating problems with my lly,when pulling my fith wheel.Will a larger rad out of an 06 fit my truck ? and will that help my problem?

 

[nvrplzd]

take a look here:

http://www.duramaxforum.com/forum/01-04-5-lb7-duramax-powertrain/106273-overheat-pulling-towing.html

sparknotes: some guys run the lbz cooling parts, however it requires the lbz hood, grille etc.

The only REAL option for us lly guys is a secondary cooling setup. check out the link i posted in that thread. should have you fixed up in no time if you're serious about cooling

:thumb

 

[kford13]

x2 on the aux radiator. it'll be cheaper than what your thinking about and will solve your problem.