LUVTruck.com

Im starting to build my ford 9 inch for my luv cause the stock one is takin a crap on me, and I was just wondering what you V8 guys were running in your trucks.I'm planning on a 3.25 gear ratio but Im afraid it will be too tall and it will be a slug at low speeds. My gear ratios in my transmission are 2.54-1.92-1.51-1.00.Oh, and does the drive shaft have to be shortened or lengthened?I really dont want to have to go back to the drive shaft shop after paying $500 to get it made.The sad thing was, at first it was only supposed to be about $275.Plus the trans yoke alone was $125 For those outragous prices I should just open up my own drive shaft shop.

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1975 V8 Luv
1980 Bagged Luv

my rear end ratios are 5.13's but for your streeter some 3.73's would probobly work very well for you.

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79 luv drag truck
2 skidoos
2 quads
badass duramax diesel

All I could tell you about my rear, which is an 8in. is that you turn the wheel 3 times to 1 rev of the drive line.

I'd have to agree with the 3.73's as well. I've got 4.56's in mine and I hate them for street driving. The freeway is out of the question.

Being that you have a 400 you won't feel the difference as much as us 350 guys.

3.73 good for driving. decent mileage and you can keep the rpm's down on the h-way.

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Resident lurker

What size rear tires? Also the stock rear end uses a different size U joint. I had a shaft made from scratch for a 350 trans and a 9 inch rear end, new u joints and everything for 210.00. This included the good tubeing for big HP.

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Certified pilots, looking down on people since 1903.

say you have a 350 trans, and you have 3.73 in the rear.. what are your rpm's gunna look like around 75 mph or so? just curious?

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!!!FINALLY!!!
-1977 Luv mikado

Dunno about speed, as I didn't have a speedo hooked up, and the truck is down to the frame at the moment... but you wouldbe moving right along at 3 grand. but not sure what the speed was...

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Resident lurker

I'm running about 25x7'' wide street tires out back, but I might be tubbing it too cause it wants to fish tail on me when I get on it.I used a ratio calculator and these are the numbers I got at 3000 rpm in high gear (1:1.) 3.08=75mph--3.36=69mph--3.55=65mph--3.73=62mph.I kinda like the 3.36 ratio but I'm not sure.

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1975 V8 Luv
1980 Bagged Luv

Speaking of ratio calcs.

http://www.xse.com/leres/ss/calculator.html

Enjoy

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-Old ride-82 Luv diesel 5spd with some upgrades
-Past rides-82 Sierra, 78 Coupe De'Ville, 91 2dr Blazer, 86 RX7, 86 Porsche 944T (rear-ended and totaled)
-Curr. rides- 1970 Ford LTD 4dr, 390 4Bbl, 2nd owner! With a few Extras 00' Civic beater...

Well I got some problems with my motor now.I drove it recently and it ran really good and when I was coming home it would only run ok under 1600 RPM.I thought it was my rockers but it turns out it has a rod knock.It gets really bad when you put it under a load. Do you guys think I should try some STP oil treatment?
THIS REALLY SUCKS .

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1975 V8 Luv
1980 Bagged Luv

My opinion is that oil additives mask a problem. You need to get to the root of the problem and repair it. It won't fix it's self and if it is a rod get in and repair it before it takes out your crank or even better windows the block.

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Certified pilots, looking down on people since 1903.

Im gonna have to take out the motor after the holidays then, so till then no V8 luv for me.

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1975 V8 Luv
1980 Bagged Luv

Sorry to hear that man. Let us know if we can help.

Thanks.

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1975 V8 Luv
1980 Bagged Luv

wow, i guess no one can catch a break. youve got a rod knock, lees got a burned up tranny, MEPRs headers are gonna cost him and arm and leg. geez. it like its not even worth doin it.

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"but its that gut feeling of you're drawn to what feels right for yourself and what you're passionate about..."

(GASP).... i dont need to hear that right now...

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!!!FINALLY!!!
-1977 Luv mikado

well ill never give up the ghost, but sometimes you have to take a break.

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"but its that gut feeling of you're drawn to what feels right for yourself and what you're passionate about..."

You should be okay if you go through everything and check the clearances
unlike me I just assumed the bearings are good but I was very wrong.The T-10 trans it has,had no gaskets, worn sliders, and crushed synchros.It's an expirimental vehicle so I cant get to mad at it.But once everything is working order you will have tons of fun with it, and they draw plenty attention.Especially the cops.

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1975 V8 Luv
1980 Bagged Luv

Back to gearing... I'm running a Ford 9" unit with 2.75 gears with 25" tall rear tires. No speedometer but ratio calculations call out 2500 r.p.m.@ 75 m.p.h. It will pour smoke from a dead stop for at least 100 ft. Tall gearing does that. This setup makes for a little better gas mileage and more consistant engine temps. It accelerates pretty strong but it wont make your butthole pucker up. It's great on the Hwy though. Passing vehicles is childs play.

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Previous setup: 4.1 Buick V-6/TH 350
Current setup: 400 Small Block Chevy V-8/TH 350
9" ford rear end/short bed/blue
What do Water, Electricity and Humans have in common... They all travel the path of least resistance.