Transmission Identification

[SASKCHEYENNE75]

I picked up a scrap truck for a few parts and this transmission was in the back. Can someone help me by telling me what it is? I'm thinking a th350 but I'm not positive.

 

[SASKCHEYENNE75]

Id Tag

 

[PrairieDrifter]

That may not be a Chevy. Let's see the pan.

 

[85K304SPD]

Looks like a TH350. We need to see the pan shape.

 

[legopnuematic]

Turbo 200?

 

[Rickf]

It's not a BOP. I thought someplace on this website or GMT400's there is a guide for GM transmissions based on pan gasket shape.

 

[82sbshortbed]

You must be registered for see images attach

 

[Matt69olds]

Turbo 200?

Bingo!!

One piece case confirms it.

Easiest way to tell a TH250 from a th350 is the band adjusting screw on the drivers side of the case.

 

[75gmck25]

The TH-200 is a 4 speed overdrive automatic, and it works well to replace the TH350 if you don’t go too crazy on the horsepower . It can be built for high HP, but won’t handle it stock.

 

[legopnuematic]

The TH-200 is a 4 speed overdrive automatic, and it works well to replace the TH350 if you don’t go too crazy on the horsepower . It can be built for high HP, but won’t handle it stock.

That's the 200-4R that's a 4speed overdrive, the 200 is a light duty 3 speed unit.

 

[SASKCHEYENNE75]

Thanks everyone!

 

[tenthirtytwo]

Boat anchor?

 

[ButchM]

Its a TH200. The CY code puts it between about 1976 and 1981. Def a Chev bell housing.
Not a boat anchor necessarily. The best bet for this, IMHO, is to look for it a home with a circle track or drag racing group. These are popular with some of them due to the light rotating mass... like a Powerglide with an extra gear and they've been outta production for 35 yrs or so.

 

[racprops]

I loved a 200R4, the have a lower first gear than a 700R4 and a taller Overdrive ratio:

200R4 ;

• 1st gear: 2.74
• 2nd gear: 1.57
• 3rd gear: 1
• 4th gear: .67

Gear Ratios:

• First:3.059:1
• Second:1.625:1
• Third:1.00:1
• Fourth:0.069:1

And in many cases it can directly swap in place of a TH350 like I did in a 79 Camaro.

Rich

 

[Ricko1966]

I loved a 200R4, the have a lower first gear than a 700R4 and a taller Overdrive ratio:

200R4 ;

• 1st gear: 2.74
• 2nd gear: 1.57
• 3rd gear: 1
• 4th gear: .67

Gear Ratios:

• First:3.059:1
• Second:1.625:1
• Third:1.00:1
• Fourth:0.069:1

And in many cases it can directly swap in place of a TH350 like I did in a 79 Camaro.

Rich

We aren't talking about a 200r4 we're talking about the old light duty turbo 200s that were used for a few years. Light duty 3 speed auto. And in gear ratio terminology 3.07 [700r4 1st gear) is lower than 200r4 2.74 1st gear) a 4.10 rear gear is lower than a 3.08 rear gear, a higher numbered gear is a lower gear, it is confusing but that's how it's been termed for 100 years,maybe longer