Pennock's Fiero Forum
  Technical Discussion & Questions
  Correct axle shaft length? Working on axles today.

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
Correct axle shaft length? Working on axles today. by 2.5
Started on: 01-05-2014 04:48 PM
Replies: 6 (301 views)
Last post by: theogre on 01-07-2014 09:31 PM
2.5
Member
Posts: 41383
From: Southern MN
Registered: May 2007


Feedback score: (1)
Leave feedback





Total ratings: 179
Rate this member

Report this Post01-05-2014 04:48 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
I have the passenger side axle shaft out of my 86 2m4 with the Isuzu trans. Measuring it, it is longer then the replacement I have to put in. But it says measure "compressed length". When the old one was removed I think I pulled too much from the wheel end and am not sure if that made it end up staying longer than when it was "compressed"?

Here is the new one:
Says 38 15/16" compressed length



Measuring my old one it looks like 40 1/8 while it sits on the ground, and the new one looks like 39 3/8. Is this just due to them not being compressed?
Any help appreciated, thanks.

Here are the two side by side.





IP: Logged
PFF
System Bot
fieroguru
Member
Posts: 11412
From: Champaign, IL
Registered: Aug 2003


Feedback score:    (45)
Leave feedback





Total ratings: 255
Rate this member

Report this Post01-05-2014 04:58 PM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
The fiero axle is supposed to be 39 3/8" compressed. Here is the EMPI part # and dimension for the passenger side fiero axle.


What is the part # on your axle?

Over time aftermarket axle manufacturers look to reduce the number of axles in inventory and substitute axles for each other. That has already happened on the DS where the 22 1/2" axle was replaced with one that is 22 11/16"
DS Fiero manual axle EMPI #:


[This message has been edited by fieroguru (edited 01-05-2014).]

IP: Logged
2.5
Member
Posts: 41383
From: Southern MN
Registered: May 2007


Feedback score: (1)
Leave feedback





Total ratings: 179
Rate this member

Report this Post01-05-2014 05:14 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Part Number: 8414N
Box also says GM 8108

Shute so this one wont work?

[This message has been edited by 2.5 (edited 01-05-2014).]

IP: Logged
2.5
Member
Posts: 41383
From: Southern MN
Registered: May 2007


Feedback score: (1)
Leave feedback





Total ratings: 179
Rate this member

Report this Post01-05-2014 05:26 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
This is kind of confusing fieroguru, I looked up axles at Oreillys too and they have one that says its 38 15/16" like this one, and one that says its 39". But none that say 39 3/8?
http://www.oreillyauto.com/...del=Fiero&vi=1249095

Napa's only one they sell is 39 inches.
http://www.napaonline.com/C...NMD959232_0173000685


I guess my question is does 38 15/16" pose a problem, or is it safe to use?

[This message has been edited by 2.5 (edited 01-05-2014).]

IP: Logged
fieroguru
Member
Posts: 11412
From: Champaign, IL
Registered: Aug 2003


Feedback score:    (45)
Leave feedback





Total ratings: 255
Rate this member

Report this Post01-05-2014 06:35 PM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
My guess is that over time, they have started switching out the axles and now offer the shorter ones.

You new axle is within 1/2" and the tripods normally have about 3/4" of play in either direction, so it will "probably" work if your engine/transmission are stock and mounted with stock mounts.
IP: Logged
2.5
Member
Posts: 41383
From: Southern MN
Registered: May 2007


Feedback score: (1)
Leave feedback





Total ratings: 179
Rate this member

Report this Post01-05-2014 07:21 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Yep its all stock.
IP: Logged
theogre
Member
Posts: 29569
From: USA
Registered: Mar 99


Feedback score: N/A
Leave feedback





Total ratings: 552
Rate this member

Report this Post01-07-2014 09:31 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
compressed length means inner tripot is compress so spring won't mess w/ measurement.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)


The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock