TH350 rebuild tech

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 Photos needed ABOVE.....
+Brass screened filter allows for more flow.
+Here's a pic of the feed holes.
+These regulate the amount of fluid, or how fast, it can apply the clutches. Drilling them bigger allows a faster apply.
+However,
+bigger is not always better.
+Remember that as the load increases on the trans, so does the pressure. The increase in pressure will cause the fluid to move faster and shifts to be firmer.
+If you drill the holes too big the shifts become too harsh at light throttle openings. This causes undue wear on the internal transmission parts, rear differential and axles, driveline and u-joints.
+The ideal situation is a shift that gets progressively harder with greater throttle openings.
+I recommend drilling the 2nd feed to .125" and the 3rd feed from .125-.140"
+Also not the 2-3 accumulator hole marked in the upper portion. This hole can be blocked but it is easier to block the passage in the VB or the 2-3 accumulator piston as previously mentioned
+Photos needed above.....
 [[Category:Transmission]]
 [[Category:Good articles]]

Revision as of 18:50, 26 February 2011