Who is satisfied with their 4.10's and to what extent?
Please compare to Stock gears

• The noise level of the 4.10's (1-10 and stk gears = 5)
• Reliability

What is the brand name

ThanX

Billy


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Bad Billy
98 WS6 M-6 Convertible
Dyno: 334.3 RWHP / 340.1 Torque
Ported MAF Ends, 160 T-Stat, Flowmasters, Cutout, 4.10 GM Superior gears

 

The noise level of the gears depends on how they're set up. You may find it noisier to drive since you'll be running at a higher engine RPM. The engine and exhaust noise will probably be higher.

Reliability again depends on how they're set up. A properly set up rear end will last a long time unless it's really abused. Then no mater how it's set up, it will usually fail.

In a street car lower gear ratios (numerically higher), will also see a decrease in gas milage unless a taller tire is installed. The speedometer will also be off and unless corrected, will cause the computer to have false readings.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress

Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!

Member of the Calgary Drag Racing Association

 

I used to have a 79 Z28 4-speed (no OD) with 4.10s. They were no noisier than the stock gears (3.73s in that car) and was otherwise OK. The car had more launch but ran out of steam even sooner on the highway. I doubt it would even get up to 90 mph. It didn't change the gas mileage much. I don't recall for sure what brand they were, might have been Eaton.

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"So many Mustangs, so little time..."