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2000 GMC Sierra 3500

Tranny Whammy

Classic Velocity

There are many updates since the last post, which are partially cosmetic, and partially mechanical. Cosmetic include turn signal lenses, finding an ashtray, and a generic seat cover. I also ended up removing the seat and ripping out the flooring. It needed cleaning, and probably replacement down the road. Mechanicals include tires, alignment, coolant flush, and oh yeah, a transmission !

gmc3500-7.jpg

It turns out that these trannies are known for having valve body issues around 80K miles, and this one would jump out of overdrive on the highway !  It was fine around town, and even on short highway stints, so this was not quickly discovered until I decided to try commuting with it. Long story made short, it has a new GM tranny with warranty. There were plenty of used ones around, but with 70K to 100K miles on them, I was not about to roll the dice. It got a good workout with a trip to Upstate NY and a visit with a Porsche buddy.