Hey guys, bought my 02z in May and love the car dearly. Unfortunately the PO neglected to tell me about issues with the tranny and diff (kicks out of reverse, couple synchros on the way out, diff whines, couple other things).
I have plans to eventually go with an UPP kit within the 2 years or so, and am planning on having the tranny and diff built to reliably handle in the ballpark of 550-600whp. Big numbers are not my intention, but reliability is a MUST.
Ideally I'd like to make this happen in one trip to the shop, with installation of the tranny, clutch, kit, diff, and the odds and ends to accompany all at once. Over time I plan on ordering the parts when I can, starting with the drivetrain and ultimately the kit, just in case my current tranny/diff calls it quits early. I'm hoping that by doing this, I can save some down time and save some money on labor.

In the meantime, I'm trying to buy some time while prepping, and want to make sure I'm not missing anything. Car is about to hit 100k miles. This weekend I'll be taking care of the following:
-New Gates Blue Belts with accompanying replacements of pulleys and tensioner
-New Redline tranny and diff oil (with extra additive)
-Goodridge SS lines, Stoptech pads (rotors are in good condition)
-New fuel filter
-New O2 sensors
-New front ABS harness extensions (throwing that code intermittently, bearings and sensor are fine)
-Coolant drain and refill (made sure to get Dexcool)
-New plugs and MSD wires

Oil is new, car has new RE760's, and MAF clean with relearn was recently done.
I'm debating on holding out for suspension bushings until we have to drop the suspension for the tranny work. The engine runs strong, but I may see about picking up valve springs and anything else relatively small but vital that I can do right now.

I'm looking for any guidance as to where to go from here regarding possible other issues I could run into. Basically trying to be prophylactic with the maintenance so when it's time to pull trigger on the big installs, it can happen without issue.

My apologies for the novel,

-Kasey

 

If you're not getting CELs on the o2 I would forgo replacing them.

I would go with amsoil torque drive on transmission fluid. I ran red line previously and it didn't respond as well in cold weather.

If you're at all mechanically inclined these types of jobs would be a great opportunity to get familiar with your car and gauge what you're getting into when considering mods/maintenance. Either way good luck with your build.

 

My gas mileage has been less than stellar (20mpg with VERY conservative highway driving, stock car, no codes). For as low priced as I found them, I figured peace of mind was worth it, but I'll give them a check with the multimeter when I pull them. As far as the amsoil, I'll give it a shot if the redline doesn't live up to expectations. Already have everything bought and waiting at home.

I failed to mention I'll be doing all things mentioned this weekend myself with a hand from a friend. I'm not half bad with a wrench I've built a handful of race bikes and worked in a shop back home during high school.

 

Don't forget the battery....parasitic elect system will wear it down in no time, look for a
1 1/2 reserve capacity.

 

Is the engine STOCK or have modifications been made? If modded, what was done?

You did use an ATF Oil in trans,,, CORRECT???

Here are a few POST that you should become familiar with before you get too involved in ADDING POWER!

- C5 Clutch Vibration Issues: http://forums.corvetteforum.com/c5-t...post1585950971

- C5 FLYWHEEL BALANCE ISSUES: http://forums.corvetteforum.com/c5-t...ion-twice.html

- C5 ragtopws6, T-56 Build (whats in my tranny?) : http://forums.corvetteforum.com/nort...-smoother.html

- C5, ragtopws6 , Upgrading your C5 rear with C6 Z06 guts, : http://forums.corvetteforum.com/c5-g...-z06-guts.html
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- C5, Its_Go_Time, Output Shaft Install - Left and Right: http://forums.corvetteforum.com/c5-t...post1573407966

- C5, Its Go TIME, Differential Rebuild post: https://www.corvetteforum.com/forums...1&p=1591127325

- C5 Differential Seal replacement: http://forums.corvetteforum.com/c5-g...on-photos.html
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- C5 STARTER UP_GRADE “TWO LONG BOLTS”: http://forums.corvetteforum.com/c5-t...k-starter.html