C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

C-beam install

Thread Tools
 
Search this Thread
 
Old Apr 23, 2017 | 07:56 PM
  #1  
armybyrd's Avatar
armybyrd
Thread Starter
Drifting
 
Joined: Jun 2007
Posts: 1,454
Likes: 15
From: Martinsburg WV
Default C-beam install

When I pulled my engine/tranny I left the c-beam connected to the rear and just slid the driveshaft out of the tranny.
For the install I forgot about the driveshaft end and already have the engine bolted in place. Will I be able to disconnect the driveshaft at the rear end and slide the end into the tranny or will I have to loosen the engine mount bolts to move it around?

Last edited by armybyrd; Apr 23, 2017 at 09:48 PM.
Reply
Old Apr 23, 2017 | 08:31 PM
  #2  
Tom400CFI's Avatar
Tom400CFI
Team Owner
Pro Mechanic
20 Year Member
 
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Default

You should be able to un bolt it from the rear and finagle it into the trans, then re-install it into the rear yoke.
Reply
Old Apr 23, 2017 | 10:14 PM
  #3  
VikingTrad3r's Avatar
VikingTrad3r
Oil Producer
Supporting Gold
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2014
Posts: 9,371
Likes: 2,736
Default

Originally Posted by Tom400CFI
You should be able to un bolt it from the rear and finagle it into the trans, then re-install it into the rear yoke.
i have used a rubber mallet and a small piece of 2x4 to move it into position. wood ensures no markings or damage is done. it is a tight fit.
Reply
Old Apr 24, 2017 | 07:55 AM
  #4  
armybyrd's Avatar
armybyrd
Thread Starter
Drifting
 
Joined: Jun 2007
Posts: 1,454
Likes: 15
From: Martinsburg WV
Default

Originally Posted by VikingTrad3r
i have used a rubber mallet and a small piece of 2x4 to move it into position. wood ensures no markings or damage is done. it is a tight fit.
Driveshaft you mean? I'm guessing I'll have to at least loosen the rear c-beam bolts? I just had a helluva time getting the engine & tranny back in by myself so I'd hate to have to undo the engine mounts. I'll mess with the driveshaft/c-beam within the next few days.

Last edited by armybyrd; Apr 24, 2017 at 07:57 AM.
Reply
Old Apr 24, 2017 | 09:12 AM
  #5  
SJW's Avatar
SJW
Le Mans Master
20 Year Member
 
Joined: May 2005
Posts: 7,354
Likes: 2,278
From: Central Maryland
Default

No need to disturb what you've already done. Remove the driveshaft and slip it into the extension housing, then secure to the diff. If you can't get the clearance you need, worst case is that you'll need to support the rear of the engine, unbolt the C-beam and move it out of the way enough to get the shaft out and back in. Then bolt the C-beam back in place, torque the bolts, and call it done. No big deal.

Live well,

SJW
Reply
Old Apr 24, 2017 | 12:34 PM
  #6  
QCVette's Avatar
QCVette
Le Mans Master
15 Year Member
Active Streak: 90 Days
Liked
Top Answer: 3
 
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
Default

Originally Posted by SJW
No need to disturb what you've already done. Remove the driveshaft and slip it into the extension housing, then secure to the diff. If you can't get the clearance you need, worst case is that you'll need to support the rear of the engine, unbolt the C-beam and move it out of the way enough to get the shaft out and back in. Then bolt the C-beam back in place, torque the bolts, and call it done. No big deal....
Exactly

When I did my transmission, there was no need to unbolt engine/transmission to get the C-beam in. On mine I had to support the rear of the engine to both remove the C-beam and to reinstall it.

Getting it all to line up is not too bad either, but I struggled with it for a while until I found that raising/lowering the back of the engine will change the angle for the C-beam. At one point the C-beam bolts will literally drop through without forcing them. That is a good point to tighten up all the C-beam bolts. Although it is not the FSM method for setting the alignment, it has worked a number of times for me.

Good luck.
Reply
Old Apr 24, 2017 | 08:31 PM
  #7  
armybyrd's Avatar
armybyrd
Thread Starter
Drifting
 
Joined: Jun 2007
Posts: 1,454
Likes: 15
From: Martinsburg WV
Default

got the driveshaft in no problem. I'm going to have to order a new strap bolt though. That and my 2 month old harbor freight floor jack quit on me :/
Reply
Old Apr 24, 2017 | 08:45 PM
  #8  
VikingTrad3r's Avatar
VikingTrad3r
Oil Producer
Supporting Gold
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2014
Posts: 9,371
Likes: 2,736
Default

A very good lesson to remind us all never to rely on only the Jack!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 24, 2017 | 08:48 PM
  #9  
armybyrd's Avatar
armybyrd
Thread Starter
Drifting
 
Joined: Jun 2007
Posts: 1,454
Likes: 15
From: Martinsburg WV
Default

Originally Posted by VikingTrad3r
A very good lesson to remind us all never to rely on only the Jack!

Yea well i had a jack stand on one corner and a smaller trolley jack for backup. Luckily I'm within the 90 day window to return it.
Reply

Get notified of new replies

To C-beam install





All times are GMT -4. The time now is 05:03 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE