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Guest Anonymous

dissapointed...

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Guest Anonymous

well well...

I bought what I though and was told was a 3.91 LSD. I Installed it into my car like usualy, took a weekend.

I got to test drive and i notice no difference whatsoever! The car feels the exact same as it was before. I jacked her up, both wheels go foreward so it is deffinately limited slip. My thinking it that it could be the same ratio as before, but i sure hope not!

as for markings on the diff they were un readable, no matter what i did i could not identify what the numbers said.

Ive got a 0-60 timer in my car and the reading is still 10.5 (same as before). How much improvement should a 3.91 make over a 3.64? Is it improvemnt you can feel? cause i sure cant feel a thing!

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Guest Anonymous

Remove the cover and count the number of teeth.

40 on the ring and 11 ont the pinion is 3.64

39 and 10 is 3.90

some are 43/11 too.

Pat Allen

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Guest Anonymous

(nt)

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Guest Anonymous

IM002253.jpg

shaft. If it spins just over 3.5 times = 3.64 if it almost goes around 4 times = 3.91. I think I have that corect, maybe the other way around. Oh well I am a Hopkins grad....

When I switched to a 3.91 LSD all I noticed was that I shifted sooner and more often, so I switched to a 3.64 LSD and very happy with it with my grandpa driving style.

My NC engineer friend who went to UVA claims I should have noticed a difference but you know those WAHOOS.

Wonder what Mr. Jefferson would have said?

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Guest Anonymous

Mechanical Advantage- originally thought to use 'leverage', but m.a. is more accurate.

personally, the 3.64 lsd is more desireable- with a small cam and high compression, you can make the torque to supplant low gearing. 3.64 rear end and o.d. 5 spd, you can cruise with modern cars.

rj

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Guest Anonymous

Also, what was a 25% LSD 25 years ago, might be only 5 or 10% today. Clutch dics do wear out.

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Guest Anonymous

(nt)

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Guest Anonymous

(nt)

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Guest Anonymous

Did you notice any improvement in power to the wheels coming out of corners? Less "chirping"? I'm planning a doing a swap to LSD and that is what I'll looking for.

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Guest Anonymous

Ill run these tests tomorow morning and let you guys know. No this diff wanst bought off ebay, i purchased it private sale.

Well my plan is to run a 284 degree cam with a 3.91 rear end. I have a 5 spd tranny and all the little goodies. is this good? goin with a higher rear end? I plan on revvin pretty high. thank you.

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Guest Anonymous

yes i did notice improvemnt in the corners! but no improvements goin dead ahead!...unfortunately.

Hey btw, will wreckers ever trade products?

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Guest Anonymous

And people with high power engines like them better.

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