Th350 36 element sprag

[@lilvedo1]

Can that little roller sprag thing go on backwards instead of spinning left it spin to the right for example would you have reverse but no forward gear ?

[@naudydave]

So you can install it the opposite way. It is applied in second gear. You still have forward and reverse just second gear will not be right.

[@davidtaylor5082]

If that sprag is starting to fail will it effect the way it shifts into second gear my turbo 350 has the sonax outter ring but only the 16 element sprag

[@davidtaylor5082]

Ooo bye the way it has a manual reverse valve body with no band

[@Nova-1977]

I run a low 9 second car 1.28 short times with a TH350 with a break. It’s been great for over 4 years now. It’s also 2700 lbs with me it helps. I also tried a glide with the stock 1.76 gear set it ran exactly the same ET and picked up 1 mph . But the short time went to 1.32. It’s more forgiving on launch with the glide .

[@sheepdog.8435]

Thanks!

[@davidreed6070]

Dave did all turbo 350s have the ski jump drum or were the early ones different?

[@naudydave]

@@davidreed6070 I’ve only seen this one style unless it was aftermarket

[@Twisted_T_Racing]

Have you found anywhere to buy just the sprag? I haven't been able to and I'm assuming its nothing special and a factory part for another transmission they used. I could easily turn down my own drum if I can find one of these sprags.

[@naudydave]

Borg Warner 27499AM

[@naudydave]

Just google that. It’s for a 4t80

[@Twisted_T_Racing]

@@naudydave Thanks a lot!

[@davidtaylor5082]

Can you put the dimensions on here so I can get the specs so I can take my drum to the machine shop so I can get it turned down

[@naudydave]

I’m going to turn one done and I can put the exact dimensions when I’m done if that helps. I have the sprag and a sonnax out race ordered. So when it comes in.

[@davidtaylor5082]

@@naudydave yes it will help a ton thank you

[@Wings_650]

Hi big brother

[@davidreed6070]

I now know why turbo 350s break the cases.

[@mikefoley7561]

i would think the left over un machined lines would eat up the sprag

[@naudydave]

It’s hard to say. I got this one that way. I don’t think it would do much. You have other parts making contact and should fill up with fluid.

[@mikefoley7561]

good luck and keep us informed on how it works out for you.

[@fabricancustoms]

I'm also curious. I've heard of these things burning up on guys, so I would like to know why