Lurker that followed directions.
 

Lurked this forum a while and got a lot of good info. Now have an 03 Suburban with 4.88 gears wrapped around a a Truetrac in a diff built with Yukon axles and Moser C-Clip eliminators. Trans is a 4L60 with a 2,600 rpm stall, 5 pinion planetaries, Raybestos clutches, 0.50 boost valve, goes on and on ended up being almost $3k in parts and a year later still burns up the 33s hitting 2nd. Engine is a 5.3 with 4.8 pistons in it, TBSS intake Manifold, Long tube headers, Trick Flow GenX 205 heads, and a 226/226 0.598/0.598 LSA 111 from Comp. End of the day 336 rwhp and 304 lbs of torque. Numbers aint great cause the 4x4 and 33x12.5 muds soak up a lot but with 4.88 gears it's still fun.

Exhaust has no cats but is fairly subtle with a Resonator from Vibrant and a 20+ inch Spintech 8000 muffler.
Dyno video in 3rd gear to 120 mph.
Attachment 89840

Welcome to PT! Glad you joined up, the Suburban looks like a cool ride.

Nice lookin suburban!! Dont worry you arent the only one that was lurking for a while.... I did too lol! Not tryin to jack your thread but im jealous i just still cant figure out why my 345rwhp wont turn over my 35s.... One day ill figure it out!!!

Welcome! That's a sweet ride you got there, sounds great! Where you from?

Appreciate it everyone.

Yeah it's a ton of fun also I'm out in Bergen county NJ

South jersey, Gloucester county. It's nice to know another jersey person is on the board. Great sig. Pic by the way

Yeah the sig was done buy a graphics girl who went to my college. She thought it was funny. Another reason I joined PT was I recently bought a LQ4 with 200k on it for $500. Figure gut it and try to figure out how to make a 408 out of it. The GenX 205 heads on my 5.3 are on par with the 317 heads for flow but the compression should shoot to the moon with them on the 6.0. Probably around 11:1. I'm in the dark chucking rocks though on the rest of what to do. Currently the truck is too heavy and the 5.3 aint cutting it.