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12-21-2016, 08:52 PM | #1 |
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14 BFF WMS-WMS widths
Ok so I have read a lot about the various widths of the 14 bolt FF but I haven't seen any indication about the suitability of them for use in, say, a 1971 K20. Between the 63.5" width and the 67" width. Is either more suitable or unusable when replacing an eaton HO52?
I am about to purchase a 14bff out of an '85 k20 that was a cab and chassis truck. It measures 63.5". I will be running stock rims with no intention of ever going bigger than 33". Last edited by NickontheHill; 12-21-2016 at 09:00 PM. Reason: more info |
12-26-2016, 09:44 AM | #2 |
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Re: 14 BFF WMS-WMS widths
Everything you ever wanted to know about 14bff....one of the best rear axles ever made and very very stout. I also got rid of my HO52.
http://www.pirate4x4.com/tech/billav...ble/index.html
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72 K20 Custom Camper, D60, 14BFF, full roller 406 TPI w custom built ECU and yes..it has tow hooks... |
12-26-2016, 10:12 AM | #3 |
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Re: 14 BFF WMS-WMS widths
That sounds like the narrow dually rear end. Which would be too narrow for single wheel use in a srw truck.
You want a single wheel axle out of a C20/K20 or C30/K30. The 67" rear is the one to get to look the part under a srw truck. One out of a c20/k20 will need the spring perches changed and shock mounts moved. If out of a 1 ton, the spring perches are already set correctly.
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TREVOR 1970 CST swb 4x4 (speedwarning,cruise,tilt,tach,8track, original red shoulder belts,tow hooks) 1972 Jimmy (soon to be Hickey cloned) 1971 Cheyenne Super 4x4 swb (tilt,tach,buckets, original blue shoulder belts,am/fm,cruise,tow hooks, dealer 8 track) 1972 Cheyenne Super K20 4x4 Custom Camper (tilt, tach, am/fm, tow hooks, bed toolbox, aux gas tank 1972 Cheyenne Super Crew Cab K30 4x4 Duramax, Allison, np205, buckets, tow hooks (CURRENT PROJECT) http://67-72chevytrucks.com/vboard/s...d.php?t=624819 1989 V3500 Crew Cab (454tbi, NV4500, np205) 1970 Chevelle SS (LS5 454,th400,8track,buckets,tach) :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
12-26-2016, 04:42 PM | #4 |
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Re: 14 BFF WMS-WMS widths
Thanks guys. I have read the pirate 4x4 14 bolt bible. It never really addresses which of the widths is best suited for a 67-72. But that makes sense since it is not particular to a truck model.
To summarize this subject on my end, I did not buy that axle I initially was looking at. I instead bought a 14 bolt out of a 1990 1 ton. Sadly, this one is beyond the range of years where the perches are correctly positioned, so I will be moving those as well as the shock mounts. This axle I bought is the 67" width, has a limited slip and sports the big, 13" drum brakes . Thanks for the input blksuper4x4! |
12-26-2016, 04:55 PM | #5 |
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Re: 14 BFF WMS-WMS widths
I've read that the early 14Bs for a C&C DRW truck had the right spring perch width and with a hub swap would be very close to the right WMS as well. That would leave one shock mount to possibly be relocated.
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12-27-2016, 04:04 PM | #6 |
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Re: 14 BFF WMS-WMS widths
Well a quick search using the box at the top header shows this thread for WMS to WMS of the HO52/72
http://67-72chevytrucks.com/vboard/s...d.php?t=608446
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72 K20 Custom Camper, D60, 14BFF, full roller 406 TPI w custom built ECU and yes..it has tow hooks... |
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