Join Date: Aug 2007
Location: Fort Worth, Texas
Re: What should my first mod be?
Had a leaking rear main seal and a leaking transmission seal. Thought as long as I had the drive line out, would check trans and dif, upgrade to a slightly heavier duty clutch, and upgrade to urethane couplers. AND, I added the remote clutch slave flush line.
These checks were the best decision I ever made. Although the transmission was working satisfactorily, It needed a few minor items:
All three slider assemblies
In addition, my 3/4 shift fork, which, on pre 2004 C5's is aluminum, was replaced with an '04 (steel) item (no charge)
I also opted for the "Stage 1" build package:
Carbon Kevlar synchro rings
Keys and springs
Fork pad kit
The differential (a 3.73:1 rebuild in an '04 case) was in perfect shape
The torque tube needed a complete rebuild to include three bearings at $50/ea,
My previous factory clutch (installed in 2009) was in good shape except for some burn marks on the flywheel. The disc looked brand new, I'm proud to say, as did the pressure plate. I replaced it with an aftermarket version rated at 690 hp. When replacing the clutch, my service provider commented that the previous clutch installer failed to lubricate the roller pilot bearing which, if not serviced, would eventually nibble off the tip of the torque tube input shaft. Email me for details.
My driveline should now accommodate slightly over 600 hp. With my stock 107,000 mile LS6, I am "good to go."
Dr. Driveline (not his real name) advised that I have my transmission checked every 75,000 miles. Thought I'd share this.
$6k and not one visible upgrade. I even hid the clutch flush line.
Last edited by dogill80; 07-15-2016 at 02:11 PM.