9in rear

Discussion in 'General Truck Discussion for all Generations' started by justruckin, May 31, 2021.

  1. May 31, 2021 at 12:51 PM #1
    justruckin

    justruckin Full Access Member

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    ok ... the truck i just got is a 76 F100. it had a 302 3 on the tree stock. i know with the cars if it had a stick or a FMX or bigger trans it had 31 spline axels. any idea if i have 28 or 31 in my truck??? thanks
     
  2. May 31, 2021 at 5:28 PM #2
    Roush PSD Interceptor

    Roush PSD Interceptor 7.3L Straight Piped Diesel

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    28 usually.
    Pull and count only sure way.[​IMG]

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  3. Nov 19, 2021 at 11:30 AM #3
    justruckin

    justruckin Full Access Member

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    ya .. turned out it had 28 and the light duty sealed bearings.....
     

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