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 > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-21-2022, 09:33 PM   #1
1970BannerBlazer
Registered User
 
Join Date: Jun 2021
Location: Seattle, WA
Posts: 72
Front Axle Swap Question

I’m swapping out the junk front axle from my 1970 4x4. Does anyone know if the knuckles can be removed with the hubs installed still? I’d like to not have to remove them if I don’t have to.

I’m swapping in an axle from a 1975. My plan is to swap over the knuckles and hubs onto the new axle. From what I read, everything should fit together.

I’m also swapping out the leaf springs and shocks at the same time but that is a different subject.
1970BannerBlazer is offline   Reply With Quote
Old 02-21-2022, 11:07 PM   #2
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,712
Re: Front Axle Swap Question

You need to pull the axles to disassemble the knuckles, so hubs have to come off. IMO, you are making a mistake by not using the ‘75 axle complete with it’s disc brakes or am I misunderstanding?
__________________
44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
Mike C is offline   Reply With Quote
Old 02-22-2022, 12:42 AM   #3
1970BannerBlazer
Registered User
 
Join Date: Jun 2021
Location: Seattle, WA
Posts: 72
Re: Front Axle Swap Question

Quote:
Originally Posted by Mike C View Post
You need to pull the axles to disassemble the knuckles, so hubs have to come off. IMO, you are making a mistake by not using the ‘75 axle complete with it’s disc brakes or am I misunderstanding?
Good point on the axles. I already put on a disk brake kit on my 70 knuckles. Prior to finding out the front diff/axle was total junk.
1970BannerBlazer is offline   Reply With Quote
Old 02-22-2022, 12:59 AM   #4
1970BannerBlazer
Registered User
 
Join Date: Jun 2021
Location: Seattle, WA
Posts: 72
Re: Front Axle Swap Question

Quote:
Originally Posted by Mike C View Post
You need to pull the axles to disassemble the knuckles, so hubs have to come off. IMO, you are making a mistake by not using the ‘75 axle complete with it’s disc brakes or am I misunderstanding?
What if I pull the axle shaft, knuckle, hub at the same time? If I remember, once the knuckle is pulled there is no other retainer for the axle shaft. I can then just slide the shafts back in and connect the knuckle to the ball joints?

This is all assuming that I can reuse the axles out of the 70. They also might be rusted trash.

I’m just trying to figure out how to same time. I only have a day with the lift and I have to also do front and back leaf springs and shocks.
1970BannerBlazer is offline   Reply With Quote
Old 02-22-2022, 10:04 AM   #5
1rippen6
Senior Member
 
Join Date: May 2011
Location: Greencastle PA
Posts: 6,711
Re: Front Axle Swap Question

I think you are asking for trouble, if you have problems with a ball joint then you'll be fighting with an axle in your way. If you had it apart recently, he should come apart fairly easy, just my opinion. Also, with the axle in the back of the spindle, I don't know if it will drop far enough to get the ball joints out.
1rippen6 is offline   Reply With Quote
Old 02-24-2022, 10:54 PM   #6
Skymortar
Registered User
 
Join Date: Dec 2019
Location: Stevensville Md.
Posts: 116
Re: Front Axle Swap Question

I don’t think you will be able to. I don’t think you can get the bottom ball joint nut off with the axle in. Here’s a pic with the axle out
Attached Images
 
Skymortar is offline   Reply With Quote
Reply

Bookmarks


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 06:19 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com