Transmissions and Drivetrain Need help with your trans? Problems with your axle?

4.10's in 84

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Old Dec 25, 2009 | 10:50 PM
  #1  
redroc33's Avatar
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From: Ogden,IA
Car: 1984 Z28
Engine: 305 HO
Transmission: 5-Speed
4.10's in 84

ive got an 84 z28 with a 5-speed pretty sure its got a 10 bolt 7.5 rear end. thinking of swapping gears to 4.10's off of hawksthirdgenparts any suggestions or opinions?
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Old Dec 26, 2009 | 06:36 AM
  #2  
JamesC's Avatar
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 4.10's in 84

Originally Posted by redroc33
ive got an 84 z28 with a 5-speed pretty sure its got a 10 bolt 7.5 rear end. thinking of swapping gears to 4.10's off of hawksthirdgenparts any suggestions or opinions?
An 84 would have the 7.5 ten-bolt with 26-spline axles. An 84 305HO (Vin G) would be equipped with 3.73's. 4.10's would seem to be overkill.

JamesC
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Old Dec 28, 2009 | 05:43 PM
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danandamy's Avatar
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From: Tx
Car: 86 Camaro
Engine: 305
Transmission: 700r4
Axle/Gears: 3.73
Re: 4.10's in 84

My understanding is that once you go lower than 3:73's, the pinion gear is so small they tend to snap off.

DAn
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