TRANSGO 2004R-LU 2004R Hydraulic Look Up Kit Instructions

TRANSGO 2004R-LU 2004R Hydraulic Look Up Kit Instructions

2004R-LU 2004R Hydraulic Lock Up Kit:

For VB’s missing inner shift TCC valve bore. (models with only 1 Dummy plug)

Step 1

Install small E-clip onto Small Pilot Drill groove. This is the stop for the drilling depth on each drill. Attach to drill set to low speed. Insert Small Pilot Guide into vb. Push firmly until seated. Dip drill bit into lube and begin drilling. Stop drilling occasionally and clean drill chips from VB. Lube drill again. Continue drilling until E-clip contacts pilot guide. STOP!

Step 2

Replace Small Pilot Guide with Large Pilot Guide. Install large E-clip on Large Pilot Drill next and enlarge bore. Clean VB of chips.

Step 3

Remove Large Pilot Drill. Using the same guide, continue cutting bottom of bore using the Bottom
Chase. It’s the drill with a slight point on the end.
Don’t forget to install the large E-clip first!
STOP! Do not ream VB at this time.

Modify VB Continued– Adding Governor Circuit

Step 1

With VB drilled but not reamed, we need to add the governor signal circuit. Using a straight edge, split the difference between the right side of the roll pin hole and the left side of the bolt hole. Make a center punch at the intersection shown in figure 1. Using the .125 drill provided, drill straight down slowly until you just break into the bore. Clean drilling debris.

Modify VB Continued– Reaming Valve Bore

Step 1

With VB clean of debris, lube reamer cutting edge and insert Reamer shank end into large end of Final Reamer Guide until cutting edge is completely inside Guide. (fig. 1)
Now firmly insert Reamer and Guide assembly into VB. Attach Drill to Reamer. Using slow speed and adding lube ream bore until reamer bottoms in bore. Clean VB of debris.
Use TCC Shift Valve supplied to check that the valve moves freely in the new bore. See page 1 for Valve assembly.

Don’t Forget!
Separator Plate Modification &
Solenoid assembly on last page.

2004R Plate modification for TCC Shift Valves.

On Final Assy: A solenoid with a good o-ring is required but the wires are optional.
Install the 5/16 check ball supplied into snout of lockup solenoid. L/up timing is now done by the valves.

Step 1

When adding TCC valves to your VB, you MUST convert your Separator plate to a “B” style Plate. Using gasket as a guide, Drill hole “B” using the .125 drill furnished.

Step 2

Plugging hole “A”: Enlarge hole “A” with .201 drill furnished. Now use the large Pilot
Drill to chamfer both sides of hole “A” by hand. Lay Plate on a hard flat surface. Insert Slug into hole & gently whack it with a Hammer on both sides of Plate to expand it.

Step 3

On the CASE side of plate, rub slug flush with a sharpening stone or file it flush. VB side is not necessary to make flush. Plate with:
Hole “B” uses VB WITH TCC Valves. Hole “A” uses VB WITHOUT TCC Valves. One or the other is a correct combination. This kit turns it into a “B” combination.

Thank you for using this product.
We hope you enjoy it as much as we did making it!

2004R Identifying Governor Designs & Matching Valve Bodies

Always start with a combination that WORKS right from the START !
A High Output governor with a matching VB is a great place to start if you have one.
Standard Governor and matching VB will work as well, they just shift a little sooner at full throttle.
Don’t use HO Governor and standard VB. You’ll battle shift timing issues until you eventually give up tired & defeated.
For performance work, use either the High Output combinations or the Standard combinations. Avoid the governor on the right side of the page completely for performance work. Valvebody Codes are ink stamped on the VB.

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