Interchangeable Composite Spring
Thread Starter
Instructor
Joined: Oct 2006
Posts: 224
Likes: 1
From: Bothell WA
Interchangeable Composite Spring
Anyone know if the rear composite spring from a 2008 Z51 is the same rate as the 2007 Z51 ? Same part number, same rate? Mine is damaged, seeking a recycled replacement.
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
What transmission do you have???
It appears that the rear leaf spring is different for a manual or automatic transmission. I believe the Z51 option gets the FE3 suspension.
Take a look at compnine.com and it shows the same part# for all years 2005-2008 (2008 is as far as their website goes).
It lists:
So.....you'll need to get the correct spring for your transmission type.
Also, I don't know when they switched to the new numbers, but if it's a used part it may have the old part#, or a newer part it will have the new part#.
These numbers are just ones I found doing a quick search, so double check before you order!!
BTW, Gene's forum discount price is around $300 plus shipping. I would assume you'd be able to get a recycled part for a lot less than that. If not - go with new!!
Bob
It appears that the rear leaf spring is different for a manual or automatic transmission. I believe the Z51 option gets the FE3 suspension.
Take a look at compnine.com and it shows the same part# for all years 2005-2008 (2008 is as far as their website goes).
It lists:
FE3 Manual transmission: 15233387
FE3 Automatic transmission: 15233389
However, when I plugged those into forum vendor Gene Culley's site ( http://gmpartshouse.com ) it showed a different part# and says that they are the same springs for 2005-2010 for the FE3 suspension. It says both of the numbers above have been superceded by the following:FE3 Automatic transmission: 15233389
FE3 Manual transmission: 25962579
FE3 Automatic transmission: 25962580
FE3 Automatic transmission: 25962580
So.....you'll need to get the correct spring for your transmission type.
Also, I don't know when they switched to the new numbers, but if it's a used part it may have the old part#, or a newer part it will have the new part#.
These numbers are just ones I found doing a quick search, so double check before you order!!
BTW, Gene's forum discount price is around $300 plus shipping. I would assume you'd be able to get a recycled part for a lot less than that. If not - go with new!!
Bob
Last edited by BEZ06; Jul 7, 2010 at 04:24 PM. Reason: Added BTW
