Thread: Trans break-in?

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going to start and break-in rebuilt chevy 283, also had my th350 rebuilt. is there thing i should do to the trans (any way to pre-lube?)before firing engine up and running it at the required rpm's. really do not want to damage trans.

The true experts on here may have better info, but I have always just put as much fluid as possible in the upturned converter before putting it on, then filled the transmission and kept filling it as the level went down until it was finally topped off. I don't think there is any true break in procedure like there is with an engine, ie varying speeds, etc.

Don

thank you for your speedy response! added 1 quart of fluid to converter before installing, not familiar with auto trans op. fluid will fill most of trans without engine running? i was thinking i might have to run the gear shift selector through to the gears to circulate fluid while engine idles, if not thats great! one less thing to worry about during break-in. thanks again itoldyouso.(don)

the 350 fluid capacity is about 9.0 to 10.QTwith a emty stall and 2.5 to 3.0 QTpan only thats with stock pan and stalll .watch that you do not over fill it and if it start to whine turn off check your level and add as need

thanks for the info Pat. any one have suggestions on a good quality trans fluid? can i start regular fluid change intervals right away or does it need to be changed a liitle sooner the first time?

well i run F but you could use the dex trans fluid there so many out there now i allways use a name brand .i never changed it out faster on the first one i keep a eye on it till it looks starts to look or smells bad or i think it is time i change it .i do not put many miles on my stuff .i am not the guy to ask on this we run them hard and rebuild them fluid is sometimes still good somtimes not