GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

'99 6.0 crank/LQ9 block/TH400....WHAT FLEXPLATE????

Old May 12, 2008 | 09:27 PM
  #1  
Thread Starter
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,134
Likes: 0
From: Mufflerville, CA
Default '99 6.0 crank/LQ9 block/TH400....WHAT FLEXPLATE????

I am way up **** creek w/out a paddle here boys. I have a 6.0 block, the slightly longer 6.0 crank, TCI LS1 flexplate, and a fuddle stall for my TH400. Obviously, the flexplate sticks out too far for my starter.

WHAT FIXES THIS. I've tried several truck starters, and they are all the same. I've tried lots of machine work to compensate on the plate and converter but it still isn't solving anything.

Who has resolved this issue before????
Reply
Old May 12, 2008 | 10:04 PM
  #2  
xlcooplx's Avatar
TECH Resident
iTrader: (26)
 
Joined: Feb 2006
Posts: 771
Likes: 0
From: Conway, SC
Default

you'll have to use a shorter crank from 01+ engines.
Reply
Old May 12, 2008 | 10:11 PM
  #3  
gao8302's Avatar
TECH Fanatic
iTrader: (13)
 
Joined: Feb 2006
Posts: 1,102
Likes: 0
From: Kenosha WI
Default

The longer crank was for the 80e right? Thats why the new ones have the spacer
Reply
Old May 13, 2008 | 12:14 AM
  #4  
Thread Starter
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,134
Likes: 0
From: Mufflerville, CA
Default

Originally Posted by xlcooplx
you'll have to use a shorter crank from 01+ engines.
Are you positive there is NO FLEXPLATE MADE that will work??? At all? There had to be a flexplate with this crank at somepoint.
Reply
Old May 13, 2008 | 12:18 AM
  #5  
7845's Avatar
Banned
iTrader: (1)
 
Joined: Apr 2008
Posts: 781
Likes: 1
Default

why dotn you find a starter for a 00 3/4 ton truck? it should be that simple. those starters are little longer. i also think i have a 00 flexplate from a ironhead motor lying around. let me check to see if its still around...possibly ship it to you for cost of shipping and gas to the drop off
Reply
Old May 13, 2008 | 10:07 AM
  #6  
Thread Starter
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,134
Likes: 0
From: Mufflerville, CA
Default

Originally Posted by 7845
why dotn you find a starter for a 00 3/4 ton truck? it should be that simple. those starters are little longer. i also think i have a 00 flexplate from a ironhead motor lying around. let me check to see if its still around...possibly ship it to you for cost of shipping and gas to the drop off
We tried a few starters......all of the teeth are the same distance from the mounting holes.
Reply
Old May 13, 2008 | 12:02 PM
  #7  
7845's Avatar
Banned
iTrader: (1)
 
Joined: Apr 2008
Posts: 781
Likes: 1
Default

Originally Posted by ninetres
We tried a few starters......all of the teeth are the same distance from the mounting holes.
did you try a specific starter for that year? like i said ill look for the flexplate i have here. if i have it its yours like i stated.

it shouldnt be that hard to figure out tho. the iron crank is longer yes, but later models are same distance with a spacer. unless something is wrong with your build
Reply
Old May 13, 2008 | 05:54 PM
  #8  
Truckshop's Avatar
TECH Fanatic
iTrader: (17)
 
Joined: Jul 2007
Posts: 1,139
Likes: 0
From: Prairieville,La
Default

is the flexplate on backwards? a starter for a 3/4 ton w/ a 80e should fit. if it doesn't then something is not put together correctly.
Reply
Old May 16, 2008 | 02:21 AM
  #9  
hyeride00's Avatar
Staging Lane
 
Joined: Jul 2006
Posts: 92
Likes: 0
From: so cal
Default

when i put the 80e in my 2000 (which from what i hear has the longer crank) i didnt have to mess with the starter at all....i went to GM and ordered the flexplate for the 3/4 ton for the 2000 model year...if i remember correctly, it came with a spacer?? I am not positive, but i think when i put it on, it looked like it was backwards, but it was actually the correct way to install it. its been 4 years, so my memory is a little shaddy
Reply
Old May 16, 2008 | 02:50 AM
  #10  
jfman's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Aug 2006
Posts: 571
Likes: 0
From: Atlanta, GA
Default

Some info on ls1tech

https://ls1tech.com/forums/showthrea...crankshaft+lq4
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lukn4trbl355
INTERNAL ENGINE MODIFICATIONS
7
Oct 21, 2015 11:19 PM
GMCtrk
GMT 800 & Older GM General Discussion
18
Oct 6, 2015 03:48 PM
turbo6c3
Trucks and SUV Classifieds
1
Oct 5, 2015 06:11 PM
Cammed4ever
GM Engine & Exhaust Performance
5
Sep 30, 2015 03:38 PM
sTNT971
FORCED INDUCTION
6
Sep 26, 2015 04:22 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 12:59 PM.