Thanks- that calculator is interesting and confusing. See link below which is indicates that ideally the trans tailshaft and pinion should be at equal but opposing angles - so in my case I used the adjustable a-arms to move the rear up to 3.1 degrees positive - any more and the coil springs rub the shocks. https://youtu.be/SDjBHT5-u_4
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Will Rivera
'69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears
'69 LeMans Vert, 350, #47 heads: Non-running project
Last edited by grivera; 01-24-2023 at 09:02 PM.
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