Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Transmission spacer and flexplate

Thread Tools
 
Search this Thread
 
Old Apr 25, 2018 | 11:23 AM
  #1  
Brandonlg's Avatar
Thread Starter
Registered User
 
Joined: Apr 2018
Posts: 1
Likes: 0
Default Transmission spacer and flexplate

I have a 2003 GMC Yukon Denali XL with the LQ4 6.0 it had the lone crank i thought because no spacer came off with flat flexplate and it had short bolts installed that held flexplate the trans was ether a 4L60-E or 4L65-E the dealer told me it had the 4L65-E the bell housing has a bolt hole 12oclock at top of trans the trans numbers are 3KZD255B34162057 my motor blew up so I got one out of a 2002 GMC Silverado or Sierra 2500 HD with the LQ4 6.0 only thing different is that it has a short crank i would thank since it had a spacer and dished flexplate and long bolts that held flexplate. the truck had a 4L80-E trans so in order to put the 6.0 into Denali with the 4L65-E what do I need to do

Last edited by Brandonlg; Apr 25, 2018 at 12:30 PM.
Reply
Old Apr 25, 2018 | 12:00 PM
  #2  
SwapStang's Avatar
TECH Regular
5 Year Member
Liked
Loved
 
Joined: Apr 2017
Posts: 424
Likes: 41
From: Worcester, Mass
Default

Originally Posted by Brandonlg
I have a 2003 GMC Yukon Denali XL with the LS3 6.0 it had the lone crank with no spacer and flat flexplate with short bolts the trans was a 4L65-E the motor blew up so I got one out of a 2002 GMC Silverado or Sierra 2500 HD with the LS3 6.0 only thing different is that it has a short crank with spacer and dished flexplate and long bolts with the 4L80-E trans so in order to put the short crank 6.0 into Denali with the 4L65-E what do I need to do

I'm sure someone else can chime in but I think the long cranks are only in 99-00 lq4s. None of those you described would be an ls3 should only be lq4 or lq9. LS3 is the newer 6.2. I was also pretty sure the 4l65 couldn't fit on a long crank without a custom converter or flexplate. Are you positive what you took out was a long crank motor? And in that case a 4l65e? I had a 2002 lq4 that was on a 60e that had a dished flexplate, no spacer. The absence of a spacer doesn't mean it's a long crank. Put it back together the exact way you got it out should work just fine.

Last edited by SwapStang; Apr 25, 2018 at 12:05 PM.
Reply
Old May 18, 2018 | 10:47 PM
  #3  
vooduchikn's Avatar
Teching In
 
Joined: May 2018
Posts: 28
Likes: 0
From: Omaha, NE
Default

Did you figure this out? The 4L80E flex plate is flat. 4l60E is dished.
Reply




All times are GMT -5. The time now is 11:18 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE