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  1. S

    4BW Rear Differential Fluid

    I usually do both my differential and transmission after initial breakin 2k miles as the parts should be mated well at this point. I find the fluid to be pretty full of metal shavings after breakin and don't want that crap recirculated for long.
  2. S

    CT4-V Dash rattle, 2024 Blackwing A10

    I discovered my rattle after 3 days of ownership on my 26. It was the plastic cover for the pdr/rain sensor being loose. After resecuring it, the rattle was gone.
  3. S

    4BW Rear Differential Fluid

    I followed tapout tuning's recommendation of running amsoil 75w90 in mine after the initial break in period. It's what I ran in my camaro 2ss 1le elsd and my corvette c7 z06 lsd. I'll be swapping out the transmission fluid in a few weeks as well once I'm satisfied it's broken in as well.
  4. S

    2026 5 BW Collision Alert Issue

    My 26 CT4V Blackwing just resets the alert to vibrate. Annoying as there's no timeline of when this happens. It's just random. I discover it's reset when my seat scares the hell out of me indicating a collision alert.
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