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Re: Old Girl (aka Project Underhaulin)
FWIW, I talked to Tom from Tom's Differentials in ID when I had some noises coming from the original rear end in the Blazer. He recommended Torco Racing Gear Oil in an 85W-140 as it is what he runs in all but the most serious race rear ends. He says he's tried every gear oil out there over the years and this one is his favorite.
I never did try in the original rear end before I took it out, but I have some of it that will be going in the new narrowed rear end before it gets back on the road.
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Steven
"If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers
R.I.P. Oscar
R.I.P. Ratchet
1967 Pontiac GTO - Dad was the Original Owner
1970 Chevy 2wd SWB "Oscar's Truck"
1970 Chevy 2wd Blazer "Ratchet's Blazer"
2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar"
2017 Chevy Suburban "BDB"
2020 Chevy Blazer Premier "Foxy"
Member of Louisiana Classic Truck Club (LCTC)
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