wacked RPM's
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wacked RPM's
Its like my Tach is set up for a 4.1 rear end. For a while my speedo was reading 55 at 2350 rpms. Now my speedo is broke, and I find with a GPS and other vehicles that 55mph is actually at 2050 rpms. But I have a 3.08 rear end. How is this possible? I have stock tires which say 31*10.5R15, and they measure 29 inches. I have a 302 with the M50D in my 89 150 4x4, and I am completely stumped. How can my RPM's be so far off? my axle code says 18. . . 3.08, I checked that with the counting turns trick. Whats goin on here? Anybody know?
Timmy
Timmy
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Posting Guru
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speedo inop
My speedo is INOP. When I first got it, it was reading 2350 at 55. . . it broke, fixed it and then it was running about 2350 at around 45...then it just died. The drive gear in the tcase came disconnected. I have confirmed my speed with a GPS multiple times, and with multiple other vehicles crusing with me. So. . . . what next?
timmy
timmy
