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Borg Warner transfer box questions


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Hi all,

I have just collected a second hand BW unit (RRC type) from my brother's house, several months after a forum member kindly delivered it there for me. I have two questions about it, if anyone can please answer them.

1: There is a threaded hole close to the high/low ratio selector arm. I think this is for the remote breather banjo bolt (no breather hose or fittings present), but would appreciate confirmation whether this is right or wrong, and;

2: There is a small amount of play between the input and output shafts, as you'd expect on a second hand unit, but I don't know how much is normal. Holding the input shaft still, there is up to 2mm rotational movement on the output flanges, or if you hold the output shaft still, about 1mm movement on the input shaft. It seems small to me, but is that indicative of allowable or excessive chain stretch?


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