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#1 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,378
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Let’s talk about the 14 bolt FF
I have a question I’m looking for some insight on. We all know how the 10.5” 14 bolts in the 1973 to about 1991 3/4 and 1 ton trucks, suburbans, vans etc all had inboard mounted drums (drum pinned to the back side of the hub via the wheel studs-have to remove whole hub, drum assembly to get to the brake components) in a couple different sizes. Somewhere in and around 1992 it seems that GM shortened the spindles a hair, changed the hubs up to match the spindles, and started running outboard(slip on drums)… on every thing except for as it seems 1992-98 3/4 8600 lb gvw pickups. 3/4 ton suburbans and 1 ton pickups all seem to have gotten the slip on drums, I’m not sure about the vans in my research at this point. What I’d like to know is do the 1992-1998 3/4 ton trucks still use the same old SRW hubs from 1973-1991? It would seem to me they would have too because from what I can tell the inboard drum setup still uses the old style spindle. I guess to ask the question another way, does the 88-98 trucks with inboard drum 14 bolt ff use a different single wheel hub than the sqaure body 14 bolt single wheel trucks or are they identical in every way? (Wheel placement etc.)
Reason I ask is because my 98 K2500 spun an outer race in the hub and Ive got an extra set of square body hubs I’m hoping i can rebuild and replace it with. I didn’t have the extra hubs with me when I had it apart so I couldn’t compare everything at that time. And I was in hurry to band aid the truck back together as it’s my current DD.
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#2 |
Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,456
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Re: Let’s talk about the 14 bolt FF
I doubt the hubs are the same. The slip on drums are apparently rare, as there was no rhyme or reason when they got used. My 2 trucks have the traditional style drum/hub ,but have a van 14ff from an 02 that has the slip on drums. Google 14ff bible, it was on Pirate4x4, but should find it....
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2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS |
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#3 |
Registered User
Join Date: Oct 2009
Location: .
Posts: 2,186
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Re: Let’s talk about the 14 bolt FF
I would assume the hub are the same. My 99 K2500 7.4 had the drums mounted behind the hub.
If I look up the brake drum, 1972-2000 had the same part number. The same is true for the wheel seals. That would tell me the hub and backing plates have been in the same place through out that range. You can also peen the area where the race sits on your 98 hub and uses some locktite to help keep it in place. |
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#4 | |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,378
|
Re: Let’s talk about the 14 bolt FF
Quote:
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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