no, no, no.
From 2.76 to 3.23 is a 17% increase, and on top of that is added a TF-2 kit, so
@TrailBeast has it right
You are gonna need to modify the Governor, or get new lighter flyweights AND
in all probability, the shift points will not sync up properly with original shift springs. I've been down that road.
Oh yur in for such a treat!
At WOT, in AUTO-SHIFT mode,
Throttle pressure adds to Line pressure, while being opposed by Governor pressure.
Since your governor pressure is currently much lower than it should be, it currently does not require much KD system adjustment, to be added to the Jacked up TF-2 Line Pressure plus the internally adjusted throttle pressure, to delay the "normal" Part-Throttle upshifts.
You could go back inside the trans and crank one or both of those two back down, (which may be what your shop did) which sorta defeats the purpose of the TF-2 kit. OR, you could increase the Governor pressure, until you get a good balance of street manners at part throttle, PLUS a bang-shift at WOT. Once there, you can balance line pressure against throttle pressure to have the shifts occur at a pre-selected rpm. or
just do what most of us do, which is to go to manual-shift mode at WOT, and leave the Auto-WOT upshifts at whatever they happen to be; which IMO, with 3.23s on the street is just dandy fine cuz Second gear is good to ~80 mph anyway.
But you know, there' always guys like me, and maybe you, that will drop the pan 5, 10, or 15 times, to sweeten her up.
After you get your new governor parts installed;
You WILL have to fine tune with the KD mech, and I can almost guarantee you two things are gonna happen;
>1) the trans, in drive, will auto-downshift into low from second, way too early, and quite harsh. and
>2) the N/P shift into gear with no Governor pressure to oppose it will be quite harsh.
As for #1;
Think about it; the throttle is closed, so the KD is at minimum, and the governor pressure is now much higher, So Governor pressure plus line pressure with no KD pressure, forces the downshift. At this point you probably do not want to take the governor off again, so you have two options; 1) reduce the Line-pressure or 2) reduce the Throttle pressure. BOTH of those were cranked up during the install of the TF-2 kit, soooooo now off comes the pan again, to dial the pressure back.
But which one?
Well if you spend a lot of time at the track, then you kindof want to keep the line pressure up.
But if this is a DD, hell no, give some up.
On mine, I also gave up a lil Throttle pressure, which has the effect of softening the light throttle up-shifts.
I highly recommend to drill and tap an access port so that line-pressure can be adjusted without taking the pan off. When next the pan comes off, you will be able to see exactly where the port needs to be.
Throttle Pressure is adjusted with the KD adjustment, until a decent window can no longer be found, then you gotta go back inside...... lol.
as for #2,
To protect the rear sprague, you should probably always start in manual low. But the proper fix for this is the one-two punch of; reduced idle rpm, and the re-installation of the the wavy spring into the Forward clutch, with a possible reduction of either Line-pressure or Throttle pressure.
If reduced Idle rpm causes a tip-in sag, you will want to reduce the Idle-Timing.
If the trans really bangs into reverse, your best option is to reduce the rpm; do this first, because when reverse is selected, the pressure is NON-regulated; that is to say; whatever the pump is able to generate, it all goes to; slamming the high-drum, and to slamming the band. The proper fix is to put the wavy spring back into the high-drum which usually solves the problem for a streeter, but softens the 2-3 engagement ever so little.
I should say that, a harsh P/N to reverse engagement is probably not that big a deal to the trans, But the ring-gear is now turning backwards, and if a 7.25, there's no telling when she's gonna have had enough; not to forget the poor 7260 U-joints, if those are what you have. Besides that, it's almost as annoying to me as is being constipated.
Hyup, good times ........ Happy HotRodding.
oh, yur in for such a treat, lol.
