06Sierra2

ive searched a ton but am looking for any last minute tips/reccomendations before i order tomorrow. almost positive im going with the tsp224r on 114. truck is in sig, stock 3.23 gears plan on swapping to 3.73/3.90/4.10 next month. not sure which ratio yet. future plans include fast 102 and mild heads and maybe a small shot(75). eventually a 6.0 if the motor goes. please chime in with pros/cons, likes/dislikes, or reccomendations on my selection and build

GMCtrk

iTrader: (27)

that would be a real nice choice, and would also work very well in a 6.0

3.23 gears make me cringe though

double047

iTrader: (15)

I think that's a good cam choice you are looking at.

06Sierra2

thats what i was hoping to hear about the cam. dont worry those gears will go away soon!

06Sierra2

thanks for the help guys. anyone else?

dlt76028

iTrader: (13)

I've had great results with the tsp224 114. Good choice. And with the CC, definitely go 4.10s at least.

454navyss

iTrader: (46)

that will be a good choice, i would go with a 112 lsa though because i like a choppy idle

06Sierra2

i really want to pull the trigger and get the 4.10s but im a little scared. i drive my truck to illinois about 2x a yr and im worried about spinning the high rpms for long periods of time on the highway. especially in 80mph zones when i usually set the cruise at 85. thats why i was origninally thinking 3.73-3.90. half my daily driving in mixed with city so i would actually enjoy the 4.10s then i think. they would be great at the track also. its just the long trips i worry about. thoughts/opinions please?

GMCtrk

iTrader: (27)

You'll see a significant loss in highway gas mileage from the 3.23s, but there should be no concern about running the engine at 2000+ RPMs for extended periods of time. You gotta remember, GM sends out plenty of vehicles with 4.10s from the factory. And I know those with 4l80e's are turning well over 2000 rpms on the highway.

PathfinderJr

iTrader: (6)

I don't see why so many folks are afraid of turning upwards of 2k rpm on highway trips. It's not like the engine cares. Hell, before the 6-spd, I'd be turning close to 2500 rpm just cruising at 80mph on the highway. And that's with 30" tires, .73 OD in the 5-spd, and 3.73 gears in back. No biggie at all..