What Gear Ratio for 44's ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LANDC · 08-07-2009, 12:03 AM

I am running a 454 30 over, sm465 , np205 to a d60 and a 14 bolt on 44's. I grooved out my rubber and now the 4.56's I am running just don't have the jam. I have scoured the net looking for info but there is very little available. What does everybody think? I am sure I am making about 400 ponies at the crank, but they are not rocking it like I would like them to. What are guys running?

**71blksuper4x4** · 08-07-2009, 12:26 AM

Try 5.13's , they are very popular with trucks with 44's and up running one tons. I only have 4.10's right now in my truck with 49's with about the same combo but th400, and I am going to go with some 5.13's eventually. They are only available aftermarket though. You could try 4.88's but it won't gain a whole lot over the 4.56's. Trevor

LONGHAIR · 08-07-2009, 08:20 AM

I would definately go with the 5.13s over 4.88. The expense to install them is the same either way and you will get much better throttle response and drivability.
Just be sure to take good care of them immediately after the install. They need a proper "break-in". This means very short "around the block" type driving for several heat cycles. They will get amazingly hot even in this short time. Do this a few times, then double the distance, triple the distance, always allowing full cooling between rounds.
This along with a synthetic gear lube will give you the best assurance of long life for your gears.

DieselEater · 08-10-2009, 08:24 PM

No matter what gear you run....44 inch tires need a lot more than 400 HP, to feel like you have a strong truck!!!!

Especially with the sm465 tranny...Sure its super low in 1st and 2nd....But its a long jump when you get to 3rd and 4th. From 3rd to 4th on a hill is when you know you need more power.

I know gears are cheaper than engine mods, but think about it for the future, if you wanna FEEL the power with tires of that size..

A.......

**special-K** · 08-10-2009, 09:19 PM

I agree.Going that big just goes against going zippy.You need the gears and mucho ponies for the rig to jump out of the hole.

69-350 · 08-12-2009, 12:55 AM

44's, gears, 800 horses... ahh hell, 1200 horse and 66's! You know ya wanna! Oh, you want a truck, not a monster truck?

tallhoedude · 08-12-2009, 03:25 PM

Quote:

Originally Posted by 69-350

44's, gears, 800 horses... ahh hell, 1200 horse and 66's! You know ya wanna! Oh, you want a truck, not a monster truck?

ahhhhhh.....lol
"1200hp and 66's" now were talkin'

69-350 · 08-13-2009, 12:03 AM

Quote:

Originally Posted by tallhoedude

ahhhhhh.....lol
"1200hp and 66's" now were talkin'

Holy mother of god. You musta though "screw 44s!" huh? I like the SAS 'Hoe by the way. Makes me wanna SAS mine more now...

tallhoedude · 08-13-2009, 09:33 AM

Quote:

Originally Posted by 69-350

Holy mother of god. You musta though "screw 44s!" huh? I like the SAS 'Hoe by the way. Makes me wanna SAS mine more now...

YEAH,it started out with one tons and 38's,then 44's,then 2.5 tons and 52's,then tractor tires,then 5 tons and 62's,and finally beefed 5 tons and 67's.
all without even leaving the garage over the 3 years ive been building it!

Hoods69BadBowTie · 08-13-2009, 03:50 PM

Yea I am going to to say try the 5.13s out and don't waste any money on the 4.88s. Just a thought as well you may want to try and get more power out of that BB cheaply if you can cause those are big tires to turn and they need lots of HP! just my .02 cents.

08-07-2009, 12:03 AM	#1
LANDC Registered User Join Date: Oct 2008 Location: Kelowna, BC, Canada Posts: 93	What Gear Ratio for 44's ? I am running a 454 30 over, sm465 , np205 to a d60 and a 14 bolt on 44's. I grooved out my rubber and now the 4.56's I am running just don't have the jam. I have scoured the net looking for info but there is very little available. What does everybody think? I am sure I am making about 400 ponies at the crank, but they are not rocking it like I would like them to. What are guys running? __________________ Custom Vehicle, Custom Problems.

08-07-2009, 12:26 AM	#2
71blksuper4x4 SWB 4x4 Collector Join Date: Jun 2001 Location: Osage City, KS Posts: 5,156	Re: What Gear Ratio for 44's ? Try 5.13's , they are very popular with trucks with 44's and up running one tons. I only have 4.10's right now in my truck with 49's with about the same combo but th400, and I am going to go with some 5.13's eventually. They are only available aftermarket though. You could try 4.88's but it won't gain a whole lot over the 4.56's. Trevor __________________ 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

08-10-2009, 08:24 PM	#4
DieselEater Registered User Join Date: Dec 2006 Location: Trinidad, Colorado Posts: 642	Re: What Gear Ratio for 44's ? No matter what gear you run....44 inch tires need a lot more than 400 HP, to feel like you have a strong truck!!!! Especially with the sm465 tranny...Sure its super low in 1st and 2nd....But its a long jump when you get to 3rd and 4th. From 3rd to 4th on a hill is when you know you need more power. I know gears are cheaper than engine mods, but think about it for the future, if you wanna FEEL the power with tires of that size.. A....... __________________ 69' 3/4 4X4 470ci BBC 700 HP.... D60/14bolt 205/465 http://profile.myspace.com/index.cfm...ndid=127691959

08-10-2009, 09:19 PM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: What Gear Ratio for 44's ? I agree.Going that big just goes against going zippy.You need the gears and mucho ponies for the rig to jump out of the hole. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

08-12-2009, 12:55 AM	#6
69-350 Oil trash and damn proud of it Join Date: Aug 2005 Location: Williston, ND Posts: 1,993	Re: What Gear Ratio for 44's ? 44's, gears, 800 horses... ahh hell, 1200 horse and 66's! You know ya wanna! Oh, you want a truck, not a monster truck? __________________ Mark 1997 K1500 Z71, 14 bolt SF 3.73 posi, Bright Blue Metallic. 6" Superlift 1972 C-10, toolbox, p/s, 350/TH350/3.73 open, black int., bronze 2008 Dodge MegaCab. H&S tuned 6.7 Cummins. Fast Four Tons Some of my pics http://s107.photobucket.com/albums/m294/69-350/

08-13-2009, 03:50 PM	#10
Hoods69BadBowTie Chevys Kick A$$ Join Date: Jan 2005 Location: Zootown, MT Posts: 12,699	Re: What Gear Ratio for 44's ? Yea I am going to to say try the 5.13s out and don't waste any money on the 4.88s. Just a thought as well you may want to try and get more power out of that BB cheaply if you can cause those are big tires to turn and they need lots of HP! just my .02 cents. __________________ HOODS is what I answer too -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER I would rather push a Chevy then drive a ford!!



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