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Old 12-28-2017, 05:18 PM   #1
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Using Crown Vic 8.8 rear differential in '68

Does any one have any experience or information on using an 8.8 rear differential from a Crown Vic?
I think the direction I'm going is use a '95 up to an '02 police car rear end. Limited slip and disc brakes.
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Old 12-28-2017, 05:52 PM   #2
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Re: Using Crown Vic 8.8 rear differential in '68

I'm no expert but since I have time to kill I'll run my fingers a little.

Those cop 8.8s were usually 3.27-1 but occasionally you can find 3.55-1. CVs (and Merc. Grand Marq) with the "handling and performance"package (what a joke that is!) also came with 3.27s.Regular CVs had 2.73s.

Don't know anything about what engine you are running or what size tires you are planning but I "think" there are ways to beef these 8.8s up with chrome moly axles and a c-clip eliminator kit and maybe weld up the tubes.

Now for the guys that actually know something.....
'69 GMC C2500 Custom Camper, 8 1/2' bed (same as Chevy "Longhorn"), 350 ci. mild RV cam, NP 435 CR 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent.
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Old 01-07-2018, 06:31 PM   #3
crazy longhorn
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Re: Using Crown Vic 8.8 rear differential in '68

That 8.8 can be made strong......IMHO, if you spend the cash, I would go 9" Ford. We have a guy in town, that has cut & build the 9" rear, for 30 + yrs, as well as building street rods/drag stuff! Rob is good....not trying to plug the guy, but I do know where to go on the driveline stuff around here Longhorn
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
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Old 01-19-2018, 02:53 PM   #4
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Re: Using Crown Vic 8.8 rear differential in '68

You guys do realize that a Ford 8.8" rear end is basically Fords copy of a GM 12 bolt. I am not sure whether the width would work but the Explorer rear end is 31 spline axles, 3.73 with a limited slip and disk brakes. Maybe a better option?

68 C10 shortbed -- Street/Strip
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