The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-21-2019, 10:51 PM   #1
Livingstonm
Registered User
 
Join Date: Mar 2019
Location: Rio Dell
Posts: 12
14 bolt semi float help please

My back right wheel bearing has came out can anyone tell me what it requires to fix it? I assume I have to remove the axle correct? Also can anyone tell me what 14 bolt semi floats came in so when I go to the part store I can grab the correct parts.. any help is appreciated
Attached Images
 
Livingstonm is offline   Reply With Quote
Old 06-21-2019, 11:02 PM   #2
mongocanfly
Senior Member
 
Join Date: May 2015
Location: Alabama
Posts: 8,873
Re: 14 bolt semi float help please

At a minimum you'll need a new bearing and seal...the sf rears came in a variety of trucks...mine came from a 91 suburban...you'll have to pull the diff cover...remove the bolt and crosspin from the diff...then remove the c clip...then the axle will slide out....its gonna be bear to get the outer race out of the axle tube...you'll need the correct puller and possibly some heat to get it out....and the correct drivers to get the new one back in....
Hopefully the axle and tube isn't damaged...
Curious?...wheres your rear brakes?
What's the axle in?...I assume it's not in the truck it came in....
__________________
Mongo...aka Greg

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2013 GMC Z71..daily driver

Last edited by mongocanfly; 06-22-2019 at 02:28 PM.
mongocanfly is offline   Reply With Quote
Old 06-22-2019, 02:20 PM   #3
kwmech
Senior Member
 
Join Date: Mar 2003
Location: Colfax-California
Posts: 5,612
Re: 14 bolt semi float help please

My money is on you needing an axle shaft also. What is sticking out is the seal and it seems to have been leaking for quite a while. Pull the shaft as described and have a close look at the bearing surface on the shaft.
kwmech is online now   Reply With Quote
Old 06-22-2019, 03:37 PM   #4
Livingstonm
Registered User
 
Join Date: Mar 2019
Location: Rio Dell
Posts: 12
Re: 14 bolt semi float help please

Quote:
Originally Posted by mongocanfly View Post
At a minimum you'll need a new bearing and seal...the sf rears came in a variety of trucks...mine came from a 91 suburban...you'll have to pull the diff cover...remove the bolt and crosspin from the diff...then remove the c clip...then the axle will slide out....its gonna be bear to get the outer race out of the axle tube...you'll need the correct puller and possibly some heat to get it out....and the correct drivers to get the new one back in....
Hopefully the axle and tube isn't damaged...
Curious?...wheres your rear brakes?
What's the axle in?...I assume it's not in the truck it came in....
It's in my 70 c10 converted to 4wd.. I took the brake off because I was going to replace them as well as the caliper then I noticed the play and found the bearing so I just put the tire back on with the brake off just so it wasn't jacked up till I figured out what to do
Livingstonm is offline   Reply With Quote
Old 06-22-2019, 03:38 PM   #5
Livingstonm
Registered User
 
Join Date: Mar 2019
Location: Rio Dell
Posts: 12
Re: 14 bolt semi float help please

With the amount of repair and I better off just buying a full floater?
Livingstonm is offline   Reply With Quote
Old 06-22-2019, 04:09 PM   #6
mongocanfly
Senior Member
 
Join Date: May 2015
Location: Alabama
Posts: 8,873
Re: 14 bolt semi float help please

I'd pull the axle and see how much damage there is 1st...buying a ff will cost way more than fixing the sf..if there is no tube and axle damage...bearing and seal will be a cheap fix...as long as that's all that's needed...
__________________
Mongo...aka Greg

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2013 GMC Z71..daily driver

Last edited by mongocanfly; 06-22-2019 at 04:15 PM.
mongocanfly is offline   Reply With Quote
Old 06-22-2019, 05:55 PM   #7
Livingstonm
Registered User
 
Join Date: Mar 2019
Location: Rio Dell
Posts: 12
Re: 14 bolt semi float help please

Ok I'll check it out because I can get a 14bolt ff 3.73 for $250 drum to drum
Livingstonm is offline   Reply With Quote
Old 06-22-2019, 06:13 PM   #8
Getter-Done
Senior Member
 
Getter-Done's Avatar
 
Join Date: Dec 2009
Location: TN.
Posts: 1,374
Re: 14 bolt semi float help please

I had a semi-float in my 84 K-20 when I got it.

It made a noise like a u-joint went I got it.
Found out it was the cross-pin ( that mongocanfly spoke of in post #2)
was broken.
I replaced it with a full-floater I had in a parts truck that I knew was
road-worthy.
Either will be Ok.
Depends on how much weight you haul.
Sounds like $250 for that FF would be the ticket.
Depending on it condition.
__________________
84 Chevy K-20
63 Impala (my high school car)

http://67-72chevytrucks.com/vboard/s...Crew Cab Build

paypal.me/Dwayne67CrewCab
Getter-Done is offline   Reply With Quote
Old 06-22-2019, 07:56 PM   #9
mongocanfly
Senior Member
 
Join Date: May 2015
Location: Alabama
Posts: 8,873
Re: 14 bolt semi float help please

250 is a steal on that axle..id go that way as well...what ratio is your sf axle?
__________________
Mongo...aka Greg

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2013 GMC Z71..daily driver
mongocanfly is offline   Reply With Quote
Old 06-22-2019, 09:17 PM   #10
Livingstonm
Registered User
 
Join Date: Mar 2019
Location: Rio Dell
Posts: 12
Re: 14 bolt semi float help please

Quote:
Originally Posted by mongocanfly View Post
250 is a steal on that axle..id go that way as well...what ratio is your sf axle?
Honestly haven't pop the cover yet to find out
Livingstonm is offline   Reply With Quote
Old 06-22-2019, 09:18 PM   #11
mongocanfly
Senior Member
 
Join Date: May 2015
Location: Alabama
Posts: 8,873
Re: 14 bolt semi float help please

just make sure your rear gears match your front gears
__________________
Mongo...aka Greg

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2013 GMC Z71..daily driver
mongocanfly is offline   Reply With Quote
Old 06-28-2019, 06:06 PM   #12
GASoline71
"I ain't nobody, dork."
 
GASoline71's Avatar
 
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,563
Re: 14 bolt semi float help please

Around here 10.5" 14 bolt FF's are pretty reasonable and plentiful. I'd replace a SF with a FF any day if the deal was good enough. I had a 14 bolt SF in a 1991 suburban and had probs with it until the day i sold it. I've had 4 different rigs with 14 bolt FF's in them and they have been bomb proof. I'm in the process of rebuilding the 14 bolt FF in my '06 Silverado now.

Gary
__________________
'cuz chicks dig scars...

My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
GASoline71 is offline   Reply With Quote
Old 06-28-2019, 11:34 PM   #13
Livingstonm
Registered User
 
Join Date: Mar 2019
Location: Rio Dell
Posts: 12
Re: 14 bolt semi float help please

Thank you all for the help
Livingstonm is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:58 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com