need an axle...size, gearing etc.
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need an axle...size, gearing etc. - 8/28/2008 12:58:22 PM
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GMdesigner
Posts: 49
Joined: 4/18/2007
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hey guys, have been rollin'' the blazer with out any problems for some time, but now something is seriously binding up in the rear (axle bearings I think, but might be in the rearend...) I want to find a rear axle for the ''95 4wd blazer out of a junk yard (which I will get for free) instead of opening it up and finding the problem etc. Seems much easier to me to just swap the whole rearend/axle at once. My question is, what other vehicles can I get the axle from? Previous generation 4wd...2wd...other GM vehicles etc? Or, does it have to be a same generation 4wd? Any help is much appreciated. I read here that the 4wd has a width of 52"...is that correct? I live near Detroit, so if any one knows of a axle, that will help if my friends yard doesn''t have one.
oh, also, should I be concerned of the gearing? Should it match the front...does it matter?
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RE: need an axle...size, gearing etc. - 8/28/2008 1:13:44 PM
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swartlkk
Posts: 14308
Joined: 5/1/2005
From: Waterloo, NY
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You will definitely need to get the same gearing unless you are going to open the replacement up.
You will need to get the axle from another 4wd s-series truck. The 2wd axle is narrower by 4".
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Kyle-
2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto
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RE: need an axle...size, gearing etc. - 9/4/2008 3:30:34 AM
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drperry
Posts: 3896
Joined: 1/12/2007
From: GP AB CA
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Did you check and see if your brakes were sticking?
Could be the e-brake not releasing if you used it recently...
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RE: need an axle...size, gearing etc. - 9/4/2008 2:17:43 PM
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Duntov
Posts: 194
Joined: 2/29/2008
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quote:
ORIGINAL: GMdesigner
hey guys, have been rollin'''''''' the blazer with out any problems for some time, but now something is seriously binding up in the rear (axle bearings I think, but might be in the rearend...) I want to find a rear axle for the ''''''''95 4wd blazer out of a junk yard (which I will get for free) instead of opening it up and finding the problem etc. Seems much easier to me to just swap the whole rearend/axle at once. My question is, what other vehicles can I get the axle from? Previous generation 4wd...2wd...other GM vehicles etc? Or, does it have to be a same generation 4wd? Any help is much appreciated. I read here that the 4wd has a width of 52"...is that correct? I live near Detroit, so if any one knows of a axle, that will help if my friends yard doesn''''''''t have one.
oh, also, should I be concerned of the gearing? Should it match the front...does it matter?
If you have rear drum brakes, check the self adjustment mechanism, before you go to the trouble to change the whole differential and axle housing. The Gov-Loc locking differential (code G80) differential is probably in good condition if it has not been abused. Check your glove comparment to determine the axle ratio (codes GU5-3.23, GU6-3.42 or GT4-3.73) and install the same gear ratio.
The axle housing of a 4WD S/T-10 Blazer is 59" between wheel mounting points and a 2WD version is 54.5" . However both the 4WD and 2WD are 38.5" between centers of the spring perches and will swap out within limits of your choice of wheel offset. The entire rear axle housing and differential assembly will interchange in the S/T10, trucks, Blazers, Bravadas, Sonomas from 1988 - 2002. If you switch from rear drum brakes to rear disc brakes, the proportioming valve is not needed but it can remain in place. The emergency brake cable may have to be adapted to fit, depending on the year .
< Message edited by Duntov -- 9/4/2008 2:20:36 PM >
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1991 S10 Blazer 4-dr, auto., 4x4, 4.3L TBI
Competely original. My Blazer even has 1991 air in the spare.
Restored 1963 Pontiac Catalina Sport Coupe, Richmond ST-10 4-speed, 421 H.O., 370 HP tri-power, 3.64:1 Saf-T-Track, HD Police Option
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RE: need an axle...size, gearing etc. - 9/4/2008 3:32:06 PM
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drperry
Posts: 3896
Joined: 1/12/2007
From: GP AB CA
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Getting a ZR2 axle will also get your front/rear track width to be within 1/4" if I remember right.
Otherwise if you go to a regulalr non-ZR2 5-speed you can upgrade to the 8.5" and keep your current axle width.
< Message edited by drperry -- 9/4/2008 3:34:05 PM >
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