LUVTruck.com

How can I determine the rear end ratio on my truck? The pumpkin doesn't have a tag on it and I can't find anything stamped or cast into the housing or axles. Thanks!

You are talking about a Luv truck, aren't you? Or are you trying to figure out the ratio of a 64 chevy? Chevy Luv trucks were 4.56 in the 2wd trucks and 4.10 in the 4x4's and 2wd automatic trans trucks. If your trying to figure the ratio for something else, you could try one of the ratio calculators in the information section of this website. If you know your exact speed and exact R.P.M and tire height you can get a ratio# thats really close.

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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.

2WD also had 3:73's

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03Cobra

Actually, I am trying to figure the ratio in my 64 Chevy truck. But thanks for the Luv info too. The 64 doesn't run right now so I don't know top speed or rpm's or anything. I'm thinking of putting a 5-speed tranny in it and I was just curious how the gearing was going to be between the trans and rearend.

Do you wanna get rid of the 64?Trade??

No, I want to keep the 64. I've had that truck since I was 17, it's been a big pain-in-the-ass at times but I love it. I'd probably trade my wife and kid before I would my truck. I'm slowly developing the same affection for my Luv too.

ok pull the diff cover off and count the number of teeth on the ring gear then count the number on the pinion gear and divide. that will give you the ratio.

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03Cobra

luv4me is right about this. It's the most accurate way of finding out the exact ratio. Any other way will just give you a general idea of what you have. It will only cost you a gasket to find out. You'll need to buy gear oil but it would be good maintenance to put fresh lube in the axle. Who knows, you might spot a potential problem like lots of metal shavings. If it's a 64 year axle and you dont know the ratio, that suggest to me that you've never needed to deal with it except adding lube. It's worth going into just to visually inspect things and count the teeth.

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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.

pull the diff cover and you will know for sure. Most likely if it originaly came with a 6cyl motor and it has a non- posi, it's a 3.08:1 ratio.

Thanks everyone. I'll pull the cover and check it out. Hopefully all I'll find out is the ratio and that everything is still good.

just for clarification, luvs with manual trannys came stock with 4.56's and those with autos have 4.10's.

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Currently no more luv's... But in search of one!

My Automatic came with a 4:56 rear ratio and it is and automatic. .....with a 9 inch ford that has been narrowed...LOL Just kidding ..

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if you aint skeered just a little bit THEN YOU AINT GOING AS FAST AS YOU SHOULD BE!!!!

GOTTA GET A NEW LUV!!!!!!!!!

now are you kidding about the ratio or are you kidding about your rear axle?

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Currently no more luv's... But in search of one!

no I was just kidding with yall about the automatic and manual thing. Mine does have a 4:56 with a narrowed rear end and a Ford 9 Inch

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if you aint skeered just a little bit THEN YOU AINT GOING AS FAST AS YOU SHOULD BE!!!!

GOTTA GET A NEW LUV!!!!!!!!!

alright. just wondering

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Currently no more luv's... But in search of one!