PONTIAC ZONE TECH FORUMS
 

Go Back   PONTIAC ZONE TECH FORUMS >
Restoration and General Tech
> Member's Projects in progress
User Name
Password

Member's Projects in progress Show us what you're working on

sponser links

Reply
 
Thread Tools
Old 04-10-16, 01:25PM   #1
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default Growing driveline???

I have a weird problem with putting my car (1967 GTO) back together....took car apart a year ago to rebuild motor and install new clutch. Put motor back in last week. Same block I took out, same scattershield, same 4 speed trans. Only put in new motor mounts. I went to install driveline and it is now too long. Will not even go into yoke on rear end. I swapped motor mounts out to old ones and same problem. No other holes on block that will line up for motor mounts. Transmition and crossmember are in and everything there seemed to line up and is bolted in. Any ideas? Rear end was never removed. Block is a 70 455 and has other mount holes for newer and older mounts but only the 2 used match up to the mounts. Driveline input shaft slides all the way in and does not have anything inside it. I am stumped.
1967pontiac is offline   Reply With Quote
Old 04-10-16, 01:45PM   #2
JSPONT
Registered User
 
JSPONT's Avatar
 
Join Date: Feb 2014
Posts: 1,347
Default

Do you mean you can not bolt in the drive shaft now? Make sure the box is against the scatter shield tight and it is not hung up on the ring. make sure you give the drive shaft a good push in to make sure its all the way in too.
How far off is it?
JSPONT is offline   Reply With Quote
Old 04-10-16, 10:20PM   #3
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

Quote:
Originally Posted by JSPONT View Post
Do you mean you can not bolt in the drive shaft now? Make sure the box is against the scatter shield tight and it is not hung up on the ring. make sure you give the drive shaft a good push in to make sure its all the way in too.
How far off is it?
I can slide the driveshaft on and hear a "thunk" when it bottoms out. Is all the way in tight. I even checked the other trans I have that has a yoke stuck into it to keep fluids in. It is in the same amount when bottomed out. Trans is against the scatter shield tight. Put all that together before slipping it in. When the driveshaft is in tight the universal hits on the pinion nut and won't go past it. I have owned this car 40 years this year and have had everything out and back in several times in the past and never a problem...this is a first for me. Cannot see a problem.
1967pontiac is offline   Reply With Quote
Old 04-10-16, 10:42PM   #4
JSPONT
Registered User
 
JSPONT's Avatar
 
Join Date: Feb 2014
Posts: 1,347
Default

I know this sounds crazy,check the motor mounts, make sure the front tabs are in front of the frame mount not behind it.
JSPONT is offline   Reply With Quote
Old 04-10-16, 11:47PM   #5
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

I keep checking motor mounts...seems like that is where the problem should be. Here are a few pics, couple fuzzy ones of the motor mount, 1 of crossmember bolted in place to the trans (everything seems to be in place there), one of the scatter shield, one of the trans tight and last one of where the driveshaft loop sits on the pinion nut.









1967pontiac is offline   Reply With Quote
Old 04-10-16, 11:48PM   #6
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

Here is last image

1967pontiac is offline   Reply With Quote
Old 04-10-16, 11:58PM   #7
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,117
Default

Do you just add that scatter shield ? It seem like that adapter plate between shield and block, is taking up enough space, to not allow drive shaft to clear
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 04-11-16, 12:02AM   #8
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

Quote:
Originally Posted by Gach View Post
Do you just add that scatter shield ? It seem like that adapter plate between shield and block, is taking up enough space, to not allow drive shaft to clear
Scatter shield was put on 10 years ago. I put it back on just the way I took it off..
1967pontiac is offline   Reply With Quote
Old 04-11-16, 12:08AM   #9
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

I could have the driveshaft shortened but with everything going back together the same way... it should fit?? When I put the scatter shield on it probably did move it back a little but I did not check it as it did fit in place. Now it is not close.
1967pontiac is offline   Reply With Quote
Old 04-11-16, 12:11AM   #10
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,117
Default

When you put the shield on 10 years ago were you able to bolt the driveshaft up up without any problem
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 04-11-16, 12:14AM   #11
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,117
Default

It looks like a shield for a BBC and you use adapter plate to adapt to a Pontiac block.
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Old 04-11-16, 12:37AM   #12
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

It went on ok..came off ok as well as I remember. Scattershield is a Lakewood LAK-15100 for Pontiac and Olsmobile. The "adapter plate" you are looking at basically covers the opening on the bottom side and help with overall strength I believe. All the original bolt locations still bolt thru bell housing and into block. Thanks for suggestions and help...
1967pontiac is offline   Reply With Quote
Old 04-11-16, 12:42AM   #13
1967pontiac
Registered User
 
Join Date: Nov 2015
Posts: 57
Default

Rear wheels are also in the air right now (supported from the frame) so I think when it sits on the ground it will be worse, right? I removed the driveshaft with the car on the ground and it came out ok.
1967pontiac is offline   Reply With Quote
Old 04-11-16, 10:58AM   #14
Mb125
Registered User
 
Mb125's Avatar
 
Join Date: Mar 2005
Location: AZ
Posts: 4,008
Default

Regardless
There should be a minimum of 3/4" free travel in each direction for the trans yoke with full weight of the car on the suspension.
__________________
You can shear a sheep many times, but you can only skin them once.
Mb125 is offline   Reply With Quote
Old 04-11-16, 01:00PM   #15
Gach
Administrator
 
Gach's Avatar
 
Join Date: May 2003
Location: ....
Posts: 18,117
Default

If the motor mounts are in the right location on the motor ( and the apear to be ) then I'd have to say it's the shield that's courseing the polbem. Maybe being deeper which is moving the tranny back because of the depth of shield being deeper then a regular bell housing. It's the only thing it could be.

I would make sure the Trany is fully engaged into the clutch if there's away you can tell. If that's the case then shorting the drive shaft is the only solution. It's been a while sent you at last had it together.
__________________
The things they hide, the way they spin things, the excuses that they make and the things they omit.
Gach is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Customer visit, growing trend Mr. PBody Grape Vine - General Discussion 9 11-25-13 09:39PM
Norwalk pictures Zedo Grape Vine - General Discussion 20 08-29-10 02:08PM
Electric Drag Racing Growing sprint250 Grape Vine - General Discussion 1 07-19-09 05:28PM
Chassis, Driveline and Rear end set ups? Iamtheeggman Engine Tech Discussion - Street or Strip 0 03-19-08 05:37PM


All times are GMT -3. The time now is 10:46AM.

Featured Ads
Ken's Speed & Machine
Mayhem Turbocharging

Carter Cryogenics.  What can we freeze for you?

Pacific Performance Racing

Central Virginia Machine Service.  Home of the Injun Engine!

All Pontiac Engine Kits

Larry's Auto Machine.  Full serivce auto, marine machine shop, domestic and foreign.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
2001 - 2007 PontiacZone.com
Page generated in 0.11619 seconds with 43 queries