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Old 11-27-2009, 02:31 PM
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th350 shift kit

what are some advantages of a shift kit?
how can i make my own?
would it be worth the hassle?
anything would be great thanks

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Old 11-27-2009, 03:42 PM
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look at this THREAD HERE

Top of the Trans- rear end forums located at...

read the section with photos of the separator plate and drill holes.

mayb this will help you a bit
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Old 11-27-2009, 09:49 PM
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The biggest advantage of all the commercially available valve body kits (for perfomance use) is that they dual feed the 3rd gear clutches.

B&M's, TCI's, TransGo's, etc.

All that I have seen do this.

This takes care of the major hydraulic weakness in the TH350.

Some of the kits have you drill the feed holes way too big IMO and this can (WILL) cause intermediate sprag failure.

Keep the feed holes no larger than about .135" (I prefer .125" on the 2nd feed) and keep the 1-2 accumulator function active on a TH350 it will not break parts.
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Old 11-28-2009, 12:23 AM
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so thats all there is to a shift kit
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Old 11-28-2009, 12:49 PM
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and people pay 40 bucks for instructions
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Old 11-28-2009, 01:48 PM
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You are paying $40 for the instructions, the new seperator plate with dual feed, some gaskets, and usually a heavier pressure regulator spring (usually not required).

The dual feed is worth twice that....

I gave instructions in the sticky on this forum so that those who are doing a complete rebuild would have the option of completing the dual feed portion internally and not purchasing a commercially available valve body kit.

If you are not going to do internal mods, the commercially available kits are an excellent choice. I prefer the TransGo but have used them all. Some of them give bad advice for orifice sizing.
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Old 11-28-2009, 02:34 PM
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so go with a transgo
is there any way to install it while its in the truck
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Old 11-28-2009, 09:24 PM
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Yes,
It is designed to be installed with the trans in the vehicle.
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Old 11-29-2009, 10:52 AM
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is there a special way to do it to keep the little balls from falling out
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Old 11-29-2009, 10:55 AM
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Assembly gel or vaseline.
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Old 11-29-2009, 11:13 AM
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cool
thanks
do i need to toque the valve body bolts to a certain spec in in a certain order
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Old 12-01-2009, 02:01 AM
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Quote:
Originally Posted by jgh64pkup
cool
thanks
do i need to toque the valve body bolts to a certain spec in in a certain order
I start in the center and spiral outward, circular pattern.
Torque Specs here>> http://th350.netfirms.com/pages/7a2-71.jpg
TH350 Info>> http://th350.netfirms.com/browser.htm
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Old 12-01-2009, 02:42 PM
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thanks is that all i need to know
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Old 12-02-2009, 12:56 AM
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Quote:
Originally Posted by jgh64pkup
thanks is that all i need to know
Be careful when you're lowering the Valvebody so the checkballs down scatter. It will be messy as the fluid keeps dripping forever. Much easier if you can use a car lift. Leave a Pan bolt in so you can tip the pan & pour the fluid into the drain pan, then remove the last pan bolt. Also be sure to clean everything well.
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Old 12-02-2009, 02:51 PM
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it has a drain plug
so do i use brake cleaner thats what a guy told me to use when i took the valve body off the first time
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