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Which ratio to go with for a 14bff? 4.11... 4.56?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Jersey, Nov 1, 2001.

  1. Jersey

    Jersey 1/2 ton status

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    Need OPINIONS on which ratio to get with my 14bff? I'm thinking 4.11's or 4.56ers. This is where i'm at: going to be running 35's with a np241, 700r4 w/od and a 350. I mostly use it as a daily driver, occasional off road. This may also help me decide....since i can't afford a d60 right now, what's the most common ratio found in the front 10b, 8luggers? I'm running 33's and 3.42 right now and she's okay, but if i had a choice with this setup, i'd want more out of the hole, like 3.73's or 4.11's. Thanx in advance.

    - Jersey

    '91K5 - 350, 700R4, NP241, FlowMasters, 33's
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>[/b]PICS[/b]</a>
     
  2. K30dude

    K30dude Registered Member

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    speaking from experiance, go with the 4.56 gears
     
  3. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    With 35s and OD I would probably go 4.56, but I wouldn't pass a good deal on 4.10. 4.10 is going to be easier to find in the 8 lug front though. Not a huge difference in 4.10 to 4.56 anyway so it's mostly a wash.

    Russ

    85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked
    Some day: 4" lift, 44" tires, massive cutting, shorter wb and rear overhang.
     
  4. TXsizeK5

    TXsizeK5 1/2 ton status

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    I have 35"s and 4.56. It's great. And since you have OD it's all good... i only have a 4 spd and 4.56 work fine for me.

    6in 87' K5 w/ 35" BFG muds.
    305/Sm465/ NP208
    Kn, 4.56's.
    next...highflow cat, single inlet dual outlet flowmaster with 4" tips =D
     
  5. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>Ten bolts and 44s are hard to find in 4.56 since that wasnt factory. I run a 465 with 4.10s and 36s and my old man runs a 465 with 4.10s and 38s [​IMG]. He says its fine but if it was me I would save for 4.88s. Since you have OD, 4.56 would be better but 4.10 would work if thats what you can find
     
  6. zakk

    zakk 1/2 ton status

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    i think 4.10's would be fine. I am running 4.10's with 36's on my TH350. its a gas hog but everyone knows that [​IMG]

    -Zakk
    '77 K5 SB 400 TH350 NP203 p/t 6" Lift D60 14BFF 4.10's 36"Wrangler II's

    [​IMG] CK5's MOAB 2002 OR BUST!! [​IMG]
     
  7. HarryH3

    HarryH3 1 ton status Author

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    WIth the overdrive, I'd prefer the 4.56's. But it's a lot easier to find 4.10's.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  8. wayne

    wayne 3/4 ton status

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    I have that combo in my truck. 35's, 700/241, and 14ff and 4:56's. I like it and it works well. But like everybody said 4:10's are easier to find. As a matter of fact I just took a 14ff and 10 bolt 8 lug to Roger's over the past weekend with 4:10's in them and they are for sale.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  9. CaptCrunch

    CaptCrunch 1/2 ton status

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    Add one more vote for 4.56's if you can get em... good luck. 4.10's are pretty common and are ok.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  10. Jersey

    Jersey 1/2 ton status

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    Thanks for all the input guys. I found a 14ff yesterday for a decent price, just need to see what's in it and go from there. Hoping it's a 4.56 since that's what most of you recommend. Then i'll just need to find a d44 or 10b 8lug for the front with the same ratio. That'll probably be the hardest part. Does anyone know if the 10b 8lug and/or the d44 are the same width as the 10b 6luggers? i measured my 10b 6L front last night and she's 67" face to face. Thanks again for all the help.

    - Jersey

    '91K5 - 350, 700R4, NP241, FlowMasters, 33's
    <a target="_blank" href=http://pages.zdnet.com/len1313/blazer>[/b]PICS[/b]</a>
     
  11. wayne

    wayne 3/4 ton status

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    They are the same width and it is a bolt in operation.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     

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