3rd Gen. rear-end

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Dec 26, 2001 | 10:39 PM

JuGrNuT350

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From: Humble, Tx. USA!!!

3rd Gen. rear-end

My friend has a 92 25th anniv. RS w/ 305 TBI & 700R4...He was wondering what type of axle/differencial he has.... Pretty sure itz an open rear-end cuz when he does burnouts only the right wheel spins.

-Timbo-

Dec 26, 2001 | 10:41 PM

RB83L69

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From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

Yup, it's a "one wheel peel" unit... it should be a 7½" 10-bolt with drum brakes, 2.73 ratio.

Dec 27, 2001 | 05:29 PM

mrr23

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Joined: Oct 2001

Posts: 1,392

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From: orlando, fl usa

Car: 1986 pontiac TA

Engine: 360 HSR

Transmission: 700r4 3300 yank converter

Axle/Gears: 3.27 9 bolt

Re: 3rd Gen. rear-end

Quote:

Originally posted by JuGrNuT350
My friend has a 92 25th anniv. RS w/ 305 TBI & 700R4...He was wondering what type of axle/differencial he has.... Pretty sure itz an open rear-end cuz when he does burnouts only the right wheel spins.

-Timbo-

my friend has the same car. it has the GU2 code which is the 2.73 gear. look in the storage compartment in the left rear of the car. see if you have this code.

Dec 27, 2001 | 07:41 PM

JuGrNuT350

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From: Humble, Tx. USA!!!

Alright thanks alot I'll let him know.... I have a 90 Sierra that has GU4 in the glovebox do I have 2.73s also? or do I have 3.73s

-Tim-

Dec 27, 2001 | 08:11 PM

mrr23

Supreme Member

Joined: Oct 2001

Posts: 1,392

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From: orlando, fl usa

Car: 1986 pontiac TA

Engine: 360 HSR

Transmission: 700r4 3300 yank converter

Axle/Gears: 3.27 9 bolt

3rd gen

Quote:

Originally posted by JuGrNuT350
Alright thanks alot I'll let him know.... I have a 90 Sierra that has GU4 in the glovebox do I have 2.73s also? or do I have 3.73s

-Tim-

if i remember correctly GU4 is 3.23

Dec 28, 2001 | 12:25 AM

JuGrNuT350

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Joined: Nov 2001

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From: Humble, Tx. USA!!!

Thats different than what I've been told then...a guy told me GU4 was 2.73s but if GU2 is 2.73s then GU4 cudn't be 2.73s.... i wuz a bit spekticul because I thought a truck having 2.73s was a bit odd.

-Timbo-