What size is Hole 2 for a hot rod with a high stall converter?

For a hot rod with a high stall converter, Hole 2 should be .125 (1/8).

Should holes 3 and 3A be drilled on a hot rod build?

No — for hot rods with a high or normal stall converter, the instructions say 'Don't Drill' holes 3 and 3A. For mild street rod, taxi, towing, or police use, drill them to .086-.094.

Which gaskets should I use since two sets are furnished?

Use the gaskets that match the size of the guide pins G1 & G2, and make sure the chosen gaskets do not block or cover any holes in the plate.

What if my separator plate has a crack near the 3rd accumulator area?

Models without a bolt-down plate sometimes have a small crack in the shaded area shown. TransGo's new spacer fits the pointed end of the 3rd accum retainer and makes it OK to re-use the plate.

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TransGo Shift Kit Step 1 Separator Plate Hole Drill Sizes - Instructions Page 4

Valve body separator plate hole-size service instructions with drill figure

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Service procedure for drilling valve body separator plate holes, listing drill sizes per application with a labeled plate figure.

AI caption January 2019 · Photo 200 of 343

This document is Page 4 of a TransGo automatic transmission shift kit installation instruction set, dated 05 Aug 2013. It covers 'Step 1: Plate Hole Sizes,' instructing the installer on how to drill specific holes in the transmission's separator plate depending on intended use. Hole 2 should be drilled to .076 (5/64) for mild street rod, police, taxi, or towing use; .086 (#44 drill) for a street rod with stock converter (.110/7/64 if a firmer shift is desired); and .125 (1/8) for hot rods with high stall converters. Holes 1 and 1A should be .055 (OK if already bigger). Holes 3 and 3A should be .086-.094 for mild street rod, taxi, towing, or police use, but should not be drilled for hot rods with high or normal stall converters. Hole 4 is .055 if the plate has it. A diagram of the separator plate identifies hole locations 1, 1A, 2, 3, 3A, 4, and guide pin holes G2, noting the plate drawing is a combination picture and some holes/slots may differ. A caution notes that models without a bolt-down plate may crack in a shaded area, and TransGo's new spacer allows plate re-use. Two gasket sets are furnished; use the set matching guide pins G1 & G2 and ensure gaskets don't cover holes.

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Frequently asked questions

What size should I drill Hole 2 for towing, taxi, or police use?: Drill Hole 2 to .076 (5/64) for mild street rod, police, taxi, or towing applications.
What size is Hole 2 for a hot rod with a high stall converter?: For a hot rod with a high stall converter, Hole 2 should be .125 (1/8).
Should holes 3 and 3A be drilled on a hot rod build?: No — for hot rods with a high or normal stall converter, the instructions say 'Don't Drill' holes 3 and 3A. For mild street rod, taxi, towing, or police use, drill them to .086-.094.
Which gaskets should I use since two sets are furnished?: Use the gaskets that match the size of the guide pins G1 & G2, and make sure the chosen gaskets do not block or cover any holes in the plate.
What if my separator plate has a crack near the 3rd accumulator area?: Models without a bolt-down plate sometimes have a small crack in the shaded area shown. TransGo's new spacer fits the pointed end of the 3rd accum retainer and makes it OK to re-use the plate.