LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

GTP vs GXP axles

Thread Tools
 
Search this Thread
 
Old Nov 10, 2015 | 12:43 PM
  #1  
spawne32's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2014
Posts: 1,524
Likes: 4
Default GTP vs GXP axles

Are the GTP and GXP axles on the passenger side interchangeable does anyone know? I am getting multiple different part numbers and axle lengths and input spline types for the base model, GT, GTP and GXP.

Cardone is showing 66-1435 for the GXP, and 66-1256 for the GTP.
Reply
Old Nov 10, 2015 | 01:02 PM
  #2  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

Diffrent lengths for the gtp vs.gxp. autozone duralast gold is what ive had for years. And lifetime warrant.Driver side still the same though.
Reply
Old Nov 10, 2015 | 01:05 PM
  #3  
spawne32's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2014
Posts: 1,524
Likes: 4
Default

Originally Posted by 91parkave
Diffrent lengths for the gtp vs.gxp. autozone duralast gold is what ive had for years. And lifetime warrant.Driver side still the same though.
I know, issue im having is none of my local parts store have these in stock except for the GTP axles, however they are listing the same dimensions for both of them.
Reply
Old Nov 10, 2015 | 01:25 PM
  #4  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

No there not interchangeable, made that mistake already. And there computers whoever your using are wrong. Autozone had it right though which is why i mentioned them
Reply
Old Nov 10, 2015 | 01:56 PM
  #5  
spawne32's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2014
Posts: 1,524
Likes: 4
Default

Originally Posted by 91parkave
No there not interchangeable, made that mistake already. And there computers whoever your using are wrong. Autozone had it right though which is why i mentioned them
Why though, i see on one site here the GTP axles are an inch shorter, but the steering knuckles and wheel bearings, including the output shaft of the trans and the control arm are all the same, so why the two different length axles? If they are identical parts connecting them all between theres no reason why the GTP axle shouldnt fit, what problem did you encounter when you tried to install the GTP axle?
Reply
Old Nov 10, 2015 | 04:11 PM
  #6  
spawne32's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2014
Posts: 1,524
Likes: 4
Default

well i had to see it for myself so i went and bought the only remaining GTP axle i could find locally. First let me say that carquest axles are GSP axles, second let me say that GSP are made in china JUNK. The threads on the hub end were completely cut wrong and i ruined both axle nuts trying to get one to thread on. Secondly, the GTP axle is litterally almost IDENTICAL on the outside, however the inner axle shaft appears to be exactly 1.2" shorter which caused it to pull out when it was tightened, other then that it was crazy how much it matched up to the GXP axle side by side.
Reply
Old Nov 10, 2015 | 05:02 PM
  #7  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

I was trying to respond in time but the diffrence is us having a diffrent diff cover.
http://www.autozone.com/drivetrain/c...06435_0_78656/
Reply
Old Nov 10, 2015 | 05:37 PM
  #8  
spawne32's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2014
Posts: 1,524
Likes: 4
Default

no big deal, i just took it back to advance and they didnt even ask me what was wrong with it. I did however figure out what happened with the old one, the c clip broke on the cv shaft side which allowed the shaft to just back out of the cage when i did the wheel bearing, it was allowing the shaft to just spin freely in the boot. I should be able to put it all back together and run it until monday when the new one arrives. Gonna try it out tomorrow.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Nov 10, 2015 | 06:33 PM
  #9  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

Oh god not advance, they sell the cv axles with typically 3 bellows on the boot which cause it to tear prematurely. Ensure yours has 4 to 5 like oem or else you'll find yourself with a grease suprise in a week or two
Reply
Old Nov 10, 2015 | 11:23 PM
  #10  
spawne32's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2014
Posts: 1,524
Likes: 4
Default

yeh i typically NEVER use parts store brand for anything, ive been using cardone select axles for 10 years now never one broken or gone bad. That's what I have on order right now but the rarity of the GXP axles makes it impossible to find anywhere but from cardone directly. The price of the acdelco's is outrageous.
Reply
Old Nov 12, 2015 | 11:52 AM
  #11  
superglide9375's Avatar
TECH Enthusiast
 
Joined: Oct 2013
Posts: 611
Likes: 0
From: hagerstown,md
Default

yep bought mine online and took everything apart and they sent me 3800 axles,had to put it all back together and drove to napa and had to order the correct ones
Reply




All times are GMT -5. The time now is 09:24 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE