U-joint sizes

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May 31, 2017 | 05:24 PM

doctorgene

Thread Starter

Drifting

Joined: Jul 2007

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From: Kansas

U-joint sizes

Gentleman; There are two different sizes of U-joints on a C-3. Can anyone tell me what are the two sizes??? Thank's Gene

May 31, 2017 | 08:42 PM

Highlander1732

Instructor

Joined: Mar 2017

Posts: 223

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From: Ijamsville Maryland

Quote:

Originally Posted by doctorgene

Gentleman; There are two different sizes of U-joints on a C-3. Can anyone tell me what are the two sizes??? Thank's Gene

I want to sat 1350 for halfshafts and 1310(?) for driveshaft...someone will chime on the correct answer shortly. I just ordered the Spicer 1350's for my 1975 halfshafts.

May 31, 2017 | 08:49 PM

76strokervette

Burning Brakes

Joined: Nov 2011

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From: Willoughby Ohio

3 sizes: 1310,1330 and 1350. State the year you are looking for and someone will help narrow the choices for you.

May 31, 2017 | 10:17 PM

0Willcox Corvette

Former Vendor

Joined: Aug 2006

Posts: 76,656

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From: Jeffersonville Indiana 812-288-7103

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15

Quote:

Originally Posted by doctorgene

Gentleman; There are two different sizes of U-joints on a C-3. Can anyone tell me what are the two sizes??? Thank's Gene

Gene.

Its simple.. AT and Mt used two different U-joints on the 1980-1981 cars...

You have an 82 (I looked at your profile

)

So.. the 82 cars all used the same 1/2 shaft u-joint.. https://willcoxcorvette.com/corvette...-u-joint-63-90

And they also used the same drive shaft u-joint at or manual.. 80 and 81 were the odd ***** here... (I just crossed this bridge in my shop)

https://willcoxcorvette.com/corvette...smission-63-90

Ernie

Jun 1, 2017 | 09:53 AM

tracdogg2

Drifting

Joined: Jul 2002

Posts: 1,995

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From: Garland Texas

Halfshaft 1963-1979 all 1350
Halshaft 1980-1981 automatic 1330
Halshaft 1980-1981 4 speed 1350
Halfshaft 1982 1350
Driveshaft 1963-1967 all 1310
Driveshaft 1968-1970 4 speed 1310
Driveshaft 1968-1970 auto 1330
Driveshaft 1971-1979 all 1330
Driveshaft 1980-1982 rear u-joint 1310
Driveshaft 1980-1981 4 speed front 1330
Driveshaft 1980-1981 auto front 1310
Driveshaft 1982 front 1310

This should make it a lot easier since no one mentions the actual u-joint series.

Jun 1, 2017 | 11:47 PM

74 LS4-454

Melting Slicks

Joined: Mar 2006

Posts: 2,248

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From: Warrington PA

Finalist 2020 C4 of the Year - Unmodified

Quote:

Originally Posted by doctorgene

Gentleman; There are two different sizes of U-joints on a C-3. Can anyone tell me what are the two sizes??? Thank's Gene

By all means, support Ernie, but if you get stuck in the future, here are some alternatives...

Also listed in the 82 "sticky"...under PART #'s, for our 82's...

U-Joint(s) HALFSHAFT(S)
...MOOG (made in USA) non-greasable solids part #231....Halfshaft.... 1 3/16" (1.188") cap size......3 5/8" (3.625") length
...Spicer part #5-1350X.....Halfshaft non-greasable....1 3/16" (1.188") cap size......3 5/8" (3.625") length

U-Joint(s) DRIVESHAFT
...MOOG (made in USA) non-greasable solids part #254....Driveshaft... 1 1/16" (1.062") cap size..3 5/16" (3.312") length
...Spicer part #5-1310X non-greasable 1 1/16" (1.062") cap size......(3.219") length
Although there is a slight difference with the Length of the MOOG & Spicer Driveshaft joints.....3.312" compared to 3.219" a difference of 0.093", I would imagine that would not be a problem using either joint
...NAPA part# PUJ 354 (w/ 1 1/16" cap size)
...AUTOZONE DURALAST part# 1-0153DG to use in an emergency as these are 1/32" shorter in length, but same cap diameter, and made in China
...MasterPro part #380. greaseable

Last edited by 74 LS4-454; Jun 1, 2017 at 11:56 PM.

Jul 1, 2023 | 09:06 PM

Samuel’s 74

Instructor

Joined: May 2020

Posts: 116

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From: NC

Bringing up an old thread I see. It's time for me to replace my U-joints. I am looking at the MOOG #231, however some reviews on the forum are saying they won't fit.
So.. what do I do.?

Jul 1, 2023 | 09:27 PM

calwldlife

Team Owner

Joined: Jan 2007

Posts: 53,648

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From: Southern Cal Ca

St. Jude Donor '22

Quote:

Originally Posted by Samuel’s 74

Bringing up an old thread I see. It's time for me to replace my U-joints. I am looking at the MOOG #231, however some reviews on the forum are saying they won't fit.
So.. what do I do.?

big block, lt1 has bigger 1/2 shafts, and rest smaller