4 speed identification help please!

[punisher72]

I took off my bellhousing cover today and had a peak. 2 bolts were loose on the pressure plate,so tightened them up. I want to know what 4 speed i have so i can plan my next purchases. The front retainer is 4.354 diameter and i have a pic to show you the spline. Hopefully someone can tell me if its a 23 or 18 spline??? I also want to buy a blowproof bellhousing to suit my cast crank 440. Would this do???

BH15330 LAKEWOOD SAFETY BELLHOUSING BIG BLOCK NEW Details
 
Lakewood safety bellhousing, SFI approved, includes bellhousing, block saver plate, starter adapter kit SAK905 and adapter ring for 4.354" diameter bearing retainer transmissions and all hardware, can be used with both 130 tooth and 143 tooth flywheels. Fork pivot NOT included, use our fork pivot FP263 and clutch fork CF702N for all A, B & E body applications. Fits 361-383-400-413-426W-426 Hemi and 440 blocks.
Price: $449.95     

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Im going to run my 130 tooth flywheel off my 318. Any help really appreciated 

[punisher72]

I found my old post!!!!!!  the light duty which is stronger than virtually any other 4 spd has the smaller 307 front brg & 4.35" diameter front brg retainer & 23 spline input shaft. As posted by Chryco  Im guessing this is what i have.
Chryco,do you mean this box is stronger than the other 2 boxes with the 23 and 18 spline shafts with the 308 bearing?

[Cooter]

I found my old post!!!!!!  the light duty which is stronger than virtually any other 4 spd has the smaller 307 front brg & 4.35" diameter front brg retainer & 23 spline input shaft. As posted by Chryco  Im guessing this is what i have.
Chryco,do you mean this box is stronger than the other 2 boxes with the 23 and 18 spline shafts with the 308 bearing?

I believe he was referring to the fact that the lightest duty Chrysler 4-speed is stronger than than Ford or Chevy 4-speeds...

[Chryco Psycho]

yeah you have the smaller version of the 833 , the larger 4.80 front brg retainer is the stronger version , the 833 is still a strong trans