Actually it is a 637C converted into a 631C, but you are right. It looks as if they converted the 637 into a 631 by yanking out the rear engine and plugging the hole. YOu can still see the rear plantaries where the rear engine once was. We have done that to a couple machines making them into waterpulls.
Great Video But Why Would you down grade a scraper from two engines to one?
bc16canada 2 years ago
Expence or reduced maintenance ? I just took the video.
astro955 2 years ago
The 637 has always been tandem powered
generationll 3 years ago
Go Scraper!
darihall 3 years ago
it's a 631C the first machine anyway.
maplemanz 3 years ago
Actually it is a 637C converted into a 631C, but you are right. It looks as if they converted the 637 into a 631 by yanking out the rear engine and plugging the hole. YOu can still see the rear plantaries where the rear engine once was. We have done that to a couple machines making them into waterpulls.
themattster1991 3 years ago
FANTASTIC, VERY GOOD!!!!!!!!!!!
catleefs 3 years ago