Ok, so idk where i last left off, seeing as activity here from me isnt as much as it once was.
Basically, my transmission lost reverse, the whining i was hearing originally was pinion bearings from my girl falling off the lift. We've heard that story a hundo times. Old ****.
I popped my cover to check my gears out all to learn the side gears and spider gears of the original G80 unit had excessive slop. I welded those together temporarily, ordered a cool new Yukon Duragrip Posi.
Brought thr truck to a buddies house after the yukon came, took my axle apart to install it, learned the yukon/eaton/auburn etc carrier journal bearings are bigger than stock 8.5/8.6 journals.
While i was at it, i inspected pinion bearings to learn the source the whine, somehow or another, after that fateful fall, the inner pinion bearing got racked really hard and stayed there, thus causing the inner cone bearing to get jammed into its race, causing that god awful whining. For the time being, i knocked that **** out, installed the original stock bearings in. Put my welded carrier back in until i had the correct bearings.
Problemo solved for the time being, still leaving me with a welded rear, and no reverse, but no whine.
K. Fastforward to this past weekend, i bring her back with correct bearings in hand.
I do rear end first, meaning, setting up my new yukon with my fresh 4.10s i installed 2 months or so ago. Replaced pinion bearings also. Set preload at like, 18 in/lbs, idr
Done, and done.
I got .007 backlash. ez.
Buttoned that up, pulled my trans.
Pop the pan, and to my horror, i find chunks of clutch in it . Eeeeek. Thats horrible breh.
I assume originally i lost reverse due to a failed input seal on the pump stator.
I go ahead and give her a good teardown (again), i inspect 2, 3, and 4 clutches, no problemo.
So.... i had to go even further... reach the bottom of the trans to find clutches and steel packs for low/rev that were warped, and in some cases fricition welded together.
The problem?
The VB gaskets were for a 82-86 non Aux VB 700r4.
The low reverse circuit, which is fed by the aux vb was completely blocked off. noice!
Just another L, amirite? Thx for that whoever you are.
So, i called her quits for the night.
Visit my local trans store for more red eagle low/rev clutches, and kolen steels and the CORRECT vb gaskets for a 87+ aux vb 700r4.
No prob.
I flush everything from the trans and TC, replace input drum seals, stator seals. Install my new low/rev clutches, air check my apply pistons. All is right in the world.
Put it back together, and at the end, i learned i lost a 1/4" check ball... eh.... i didn't install 1 too many... i just lost the damn thing because i had them accounted for upon teardown, so idk where it went. Anywho. I finish install, leave aux vb off, go ahead and install trans. Blah blah blah.
Drive BACK to my house from my buddies in the driving rain and lightning, grab a checkball from my trans parts collection, come back to buddies shop. Install aux vb, aux vb feed line, filter, then pan.
Fill her up, fire her up, i wet all my clutches by cycling shifter.....all gears are stout as can be... reverse makes the ass squat. Yayyyy.
I drove home that night on a yukon, and a tranny thats back to smackin gears like a MF, WITH reverse.
Win, win, win, win, win.
Then over the course of this week, MORE problems arose lol.
Started out with headlight/door buzzer staying on when i turned headlights on, then hard starting, then gauges failed, and ended in me needing a jump one night at a buddies house, and on the drive home, truck running like ass, and wouldnt crank back up when i parked it. This was over a perod of a couple days.
Thanks for that suburban.
Replaced alt with a delco. Warrantied battery out, still no gauges. Bleh.
Checked the gage/idle fuse. Found it was blown. Fixed.
And thus, where we lie now? Back to square one, where i was 2 months ago.
Chasing the vacuum leak ghost, and pulling ECM data to correct my gas mileage, and power issues.
I will get back to that soon.
All in all, my sanity really suffered.
Where we lie now ? A good charging system, a good rear end on 4.10s and yukon, and a stout trans.
The lesson learned?
1. Dont let your truck fall off the lift after installing new gears.
2. Dont let someone else unless you trust them build your transmission.
From here, on a sunny day, i will pull my intake as im left with no other option than to be suspicious of a possible ex leak under the intake. (She sat for 10 years before i got my hands on it)
While im at it, bore my intake for the 46mm tbi i machined, reseal it all, setup the 46mm tbi, and get the true potential my screaming eagle sbc has.
To be continued........
