[jameel21]

How does a shift kit work and is it a good thing to put into a trans?

[willys36@aol.com]

Shift kits are pretty simple items. All they do is change springs, enlarge orifices, remove check balls, etc., depending in the model of the tranny to effect quicker oil delivery to clutches and bands for quicker, harder shifts. Detroit designs restrictions to shifts to soften them for Granny and Grandpa so they aren't aware the thing is changing gears. Shift kits are definitely a good thing for trannys since the reduce slippage, heat, and wear and improve performance with firmer shifts.

[jameel21]

I order one from summit a b&m they told me that they didn't have one that will shift softer. The reason why is because i didn't want anyone to no i install one.Do they make u come off the line any faster?

[willys36@aol.com]

I don't understand you last post but I'll try an answer. Most transmission companies make several different levels of shift improvement for all the common tranny models. Most shift kits I have used have all the parts for your choice of mild, firm, towing, or full race modifications so I don't know what you mean that Summit and B&M only have one type of kit. Shift kits can improve performance and durability of a drive-train but it isn't a magic wand. You still need to make sure the transmission is in good shape to start with and the transmission must be matched to the performance level of the rest of the system.