View previous topic :: View next topic |
Author |
Message |
MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
|
Posted: Sun Aug 17, 2014 2:46 pm Post subject: pilot bushing VS pilot bearing?? |
|
|
when or why would you use a bushing vs a bearing.
my clutch kit came with both-which do i use?
L98-700r4 to-T56 conversion
thanks
Mike |
|
Back to top |
|
|
Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
|
Posted: Sun Aug 17, 2014 2:49 pm Post subject: |
|
|
Bushing every time.
Bearings chew up input shafts and are less forgiving on install. _________________ A redline a day keeps the carbon away! |
|
Back to top |
|
|
MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
|
Posted: Sun Aug 17, 2014 2:53 pm Post subject: |
|
|
thanks for the quick reply-
so thats why its chewed up.
how much of the 1" length of the nose needs to be "INtact" for me to use it.
new input shaft? |
|
Back to top |
|
|
QwkTrip 11sec Club
Joined: 17 Feb 2004 Posts: 3942 Location: Peoria, IL
1989 Pontiac Firebird
|
Posted: Sun Aug 17, 2014 9:00 pm Post subject: |
|
|
RPM Industries will only use bearings. One of the best tranny shops in the nation. They actually told me to remove my new bushing. Careful install of bearing and trans is key to long life. |
|
Back to top |
|
|
aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
|
Posted: Sun Aug 17, 2014 9:11 pm Post subject: |
|
|
What is their logic for this, Jon?
A low clearance bearing installed in place of a bushing will never outlast said bushing, and when it inevitably fails it will require a full teardown of the trans to replace the input shaft.
You use a bearing is when the crankshaft has been designed for a bearing to be installed, and therefore has a large enough bore that you can have a sheath around the input shaft. |
|
Back to top |
|
|
QwkTrip 11sec Club
Joined: 17 Feb 2004 Posts: 3942 Location: Peoria, IL
1989 Pontiac Firebird
|
Posted: Sun Aug 17, 2014 10:44 pm Post subject: |
|
|
The advice they gave me is LS1 engine. I didn't think about Gen II being different. Is it different? |
|
Back to top |
|
|
chevymad Master B
Joined: 11 Jan 2004 Posts: 5474
1987 Pontiac Formula
|
Posted: Mon Aug 18, 2014 6:20 am Post subject: |
|
|
Alot of transmission shops will say the bearing is better. The bearing will not have the same slop in it that a bushing will get. At least until it fails. They say this is better for the internals of the trans and that it will shift better.
On the other hand I don't usually see the internals damaged as often as the input shaft trashed because the bearing failed.
I agree with Paul on this one and would use a bushing myself. |
|
Back to top |
|
|
Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
|
Posted: Mon Aug 18, 2014 4:00 pm Post subject: |
|
|
LS1 T56 transmission has the same snout diameter as a T5 does.
You'll need to post a picture of the damage to the shaft. Likely best to replace it to be safe. That is a complete transmission tear down though. _________________ A redline a day keeps the carbon away! |
|
Back to top |
|
|
MrMike98 Member
Joined: 18 May 2010 Posts: 231 Location: Bremerton
|
Posted: Tue Aug 19, 2014 8:42 am Post subject: |
|
|
i thought that you only had to remove the "upper" mid-plate, slide out the shaft, install new shaft, clean reseal mid-plate......everything else stays in the case?? what do you think of this shaft end.?? |
|
Back to top |
|
|
aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
|
Posted: Tue Aug 19, 2014 5:14 pm Post subject: |
|
|
MrMike98 wrote: | i thought that you only had to remove the "upper" mid-plate, slide out the shaft, install new shaft, clean reseal mid-plate......everything else stays in the case??? |
But how do you feel about end play?
I don't see any issue at all in the pic you posted. I'd run some emery cloth around it and go. |
|
Back to top |
|
|
|