The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Using Crown Vic 8.8 rear differential in '68

**WorkinLonghorn** · 12-28-2017, 05:52 PM

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.....

12-28-2017, 05:52 PM	#2
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,861	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, New GM 350, NP 435 Close Ratio 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.