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What modifications, if any, should be done to a Turbo350 for Off-Roading? I plan on hooking the auto up to a buick V6. The whole works will go in my 85 Toy with dual Transfer Cases.
 

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I'm wondering what people have to say abot running shift kits in trail rigs? I'm running a TH350 in a toy also, all I've added so far is a 28,000GVW cooler
 

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I had a race sprague installed with kevlar 1st and reverse, added clutch discs,shift kit and stock converter...no stall. And def. use a large cooler!
 

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put a stock TH400 converter in it. better torque at low RPM and better fuel economy onthe highway if you are worried about that. <IMG SRC="smilies/biggrin.gif" border="0">
 

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Originally posted by GATO:
<STRONG>put a stock TH400 converter in it. better torque at low RPM and better fuel economy onthe highway if you are worried about that. <IMG SRC="smilies/biggrin.gif" border="0"></STRONG>
I already have a converter from a 4x4 350 application behind a 4.3L I've been thinking about the TH400 converter though.
 

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Big cooler is #1. Heavy Duty Sprag and the right gears in the axles. Most failure are traced back to owners fault. It gets over heated for any of the following reasons, to low of gears, to small of cooler. The other error is too heavy of a right foot (blows sprag) when Neutral dropping.
 

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<font color="yellow">From experience I can tell you this:
1. Put on the biggest cooler you can fit, 28K is a good size. Make sure it gets airflow across it.
2. HD Sprag is a must. Also a good idea to put in a HD clutch pack. Red Line is a good brand.
3. Shift kit is a good idea for several reasons. it will hold a gear longer before shifting, and it will shift quicker, keeping slipping to a minimum.
4. I always run a low stall converter, usually 100RPM - not under stock, but 1000 RPM stall speed. I use the Allison Converter, much stronger and runs cooler than stock. There is slight grinding to the Tranny case (bellhousing) that needs to be done. This style converter can also be built with high quality bearings instead of bushings.
5. I would not run an external oil filter (spin on) as it drops the line pressure too much and can lead to lack of lubrication failures. Just keep your fluid serviced on a regular basis and you'll be fine.
6. Put in a breather while the tranny is out of the truck. the hole i right on top and a bitch to get to after its in the truck. If the trans is completely dissasembled, use a threaded nipple and tap the hole, if its already assembled, use the same fitting but grind off all the threads to make it smooth, and JB weld it in. Be sure to partially insert it into the hole before applying the JB weld, so it will stop the weld from running down inside the tranny.
7. put on a big cooler...

I wore out 2 TH350s in my Willys (6000+ lbs), but never had one fail... after 100K they each started slipping...</font c>

[ 09-07-2001: Message edited by: Yellowsub1962 ]
 

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I also put extra clutch "steels" for better traction. I put a 400 sprag into my 350 case "helps tranfer torque" to ground. I also put TCI hardened shafts in my 350 cause I twisted the rear output going into my 205 . I put a reverse valve body in mine too..VERY VERY NICE!!! Put an explosion shield on the outside too....SAFETY FIRST!!!

<IMG SRC="smilies/beer.gif" border="0"> <IMG SRC="smilies/beer.gif" border="0"> <IMG SRC="smilies/beer.gif" border="0">
 
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