Best Gear suggestions for 4.8L, 4L60E

[homemade87]

Originally Posted by C91

Thanks for the advice guys. I'm leaning towards the yukon 410s with posi, going to get a quite tomorrow !!! When it comes to tuning I have a guy and its tuned to fly hopefully these gears wake her up and yes the cam is mild but man does it sound mean. The cam is 212/218 with an LSA of 114 which is optimal for a supercharger/turbo setup down the road.

Any other recommendations to get this little truck flying would be appreciated

If you have not had it on a dyno to tune it you could be leaving a lot on the table . Ask me how I know . I could not get my truck to leave from a stop or low speed . I finally took it to the dyno after a couple tuners looked at it ( waste of money ) . No way for a street tune to get you where you need to be . My fuel curve was way off down low . After three pulls on the dyno I gained almost 100ft lbs torque below 4500rpm . What a difference . I do have a 6.0 but this applies to every engine combo .No way to know this unless on the dyno .

Take it to a dyno . You may fine what you need . I wish I had done this first before wasting time and money on street tunes . Don't get me wrong . Most tuners do a great job and get it running pretty good . But if wanting to tune for best performance take it to a dyno .

I look at it this way . Its like checking tire pressures with out a pressure gauge .