4L60E valve body reconditioning.

[dfarr67]

Anybody really happy with a service that does a quality job with vac testing reaming/repair and updates. Found a guy and was wondering if $450 was a decent number.

 

[clinebarger]

That's about what a Sonnax reman costs.

I do my own for the units I build.

A Sonnax AFL Valve Kit (Reaming required), Sonnax Bore Plugs, And a TransGo TCC Regulator Valve will fix 90% of 4L60E valve bodies.
If they need more than that I throw them away.

 

[dfarr67]

Whats the quality of Sonnax's kits- I love Sonnax parts but have read the VB's don't measure up to there own spec. Who buy the tp HD model ?

 

[clinebarger]

Whats the quality of Sonnax's kits- I love Sonnax parts but have read the VB's don't measure up to there own spec. Who buy the tp HD model ?

Sonnax like any other large corporation uses cheap labor & the VB's are tested on a test stand in a pass/fail. Not vacuum tested like we do in the field.

HD is for the Overrun Clutch it stay on in D3-1st & D3-2nd to protect the forward sprag, If you're not abusing the unit.....Not a need.

 

[dfarr67]

My plan was to cheap out on solonoids and just replace the EPC, buddy wants ALL replaced and harness- considering the age alone I'm ok with this. Is Rostra decent not a fan of ACD these days, GM Genuine?

 

[clinebarger]

The Made in Mexico ACD solenoids are still OEM made by Borg Warner.

Rostra makes a decent harness....But not quite OEM quality.

 

[dfarr67]

Things get expensive fast for that harness if you try to move beyond Rostra.

 

[dfarr67]

Are these eps connector interchangeable?

 

[dfarr67]

Have you had an opportunity to look and install this Sonnax kit?

https://www.sonnax.com/parts/5628-input-housing-forward-sleeve-kit

 

[clinebarger]

Are these eps connector interchangeable?View attachment 349575View attachment 349576

They are not, That's the earlier design '93-'02, 2003 & up is different.

You can run a early style PC Solenoid on any 4L60E & is arguably a better Solenoid.

 

[clinebarger]

Have you had an opportunity to look and install this Sonnax kit?

https://www.sonnax.com/parts/5628-input-housing-forward-sleeve-kit

Installed several, Not needed until you cross over 450 pound feet of torque.

 

[dfarr67]

They are not, That's the earlier design '93-'02, 2003 & up is different.

You can run a early style PC Solenoid on any 4L60E & is arguably a better Solenoid.

These harnesses are killing me.

 

[clinebarger]

What year, make, model?

 

[dfarr67]

The core is out of a 1996 4x4 K1500.
I'm looking at GM 19138846 looks 99% good except for extra connector adjacent to TCC.
https://www.summitracing.com/parts/...wXs43fM3oOl8UlNX9Rbf1MfZhcn-vlzjJc0Qo9OMpji5N
There is a fella that might be making some harnesses on LS1Tech
Reuse existng harness which is in fine shape- just seem convention to replace, I do have all new solonoids coming.

 

[dfarr67]

Installed several, Not needed until you cross over 450 pound feet of torque.

Is this forced induction territory- at what point does the 4L80E make more sense?

 

[clinebarger]

The weight of the vehicle along with Traction has a lot to do with it.

I have one of my 4L65's in a 2001 Tahoe, Stroked 408 LS that puts down 600 foot pounds.
It has a Sonnax Smart Input Drum & a 300M output shaft & is holding up well (Over 200 1/4 mile passes)

In a heavy vehicle like this.....It's near the limit of what a 4L60/65 will reliably handle.