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 Is the RM rear axle the same as the Cadillac Fleetwood rear axle?

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ShgnWgn




Posts : 7
Join date : 2023-05-10

Is the RM rear axle the same as the Cadillac Fleetwood rear axle? Empty
PostSubject: Is the RM rear axle the same as the Cadillac Fleetwood rear axle?   Is the RM rear axle the same as the Cadillac Fleetwood rear axle? Icon_minitimeTue May 16, 2023 10:12 am

I’m assuming it is as as they are dimensionally so similar.
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94Woody

94Woody


Posts : 2405
Join date : 2008-12-02
Age : 49
Location : Ocala,FL

Is the RM rear axle the same as the Cadillac Fleetwood rear axle? Empty
PostSubject: Re: Is the RM rear axle the same as the Cadillac Fleetwood rear axle?   Is the RM rear axle the same as the Cadillac Fleetwood rear axle? Icon_minitimeTue May 16, 2023 8:41 pm

Depends upon the Roadmaster. Sedan? Yes. Wagon? No. Fleetwood has the same narrow frame as the sedans while all wagons have the wider frame. Fleetwood also uses a different rear because they had 4 channel ABS on them.

Sedan and Fleetwood--1566MM

Wagons--1642.5MM

Source is this thread. https://www.impalassforum.com/threads/rearend-widths.237620/

If you aren't a member of ISSF you should become one because that is where all the real technical information is located.

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Is the RM rear axle the same as the Cadillac Fleetwood rear axle?
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