73 Differential ID?
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
73 Differential ID?
Hey all
I was just readingYellow 71's thread on rear suspension
http://forums.corvetteforum.com/show....php?t=1404587
And noticed the numbers stamped on his diff housing.
My 73 has "muskegon brake" cast into the cover.
This is my second 1973 and I dont recall seeing this on my first one either.
Anybody know if this is an original cover?
Thanks
I was just readingYellow 71's thread on rear suspension
http://forums.corvetteforum.com/show....php?t=1404587
And noticed the numbers stamped on his diff housing.
My 73 has "muskegon brake" cast into the cover.
This is my second 1973 and I dont recall seeing this on my first one either.
Anybody know if this is an original cover?
Thanks
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by chevylit
I believe thats a reproduction Heavy Duty rear cover sold by most
of the Corvette vendors. It should be of heavier construction in the
area where the stock covers usually cracked.
of the Corvette vendors. It should be of heavier construction in the
area where the stock covers usually cracked.
I wonder what happened
Believe it or not, the original owner was a little old lady ( well I do know she is old now, how little, I dont know )
I do not know the ratio and would really like to know what it is.
I can tell you that at 70 MPH it turns 2,600 rpm.
Thanks
Last edited by Bob Onit; May 29, 2006 at 05:19 PM.
Racer
Joined: Dec 2004
Posts: 379
Likes: 0
From: Fairfield Texas
Among others there was a 3:08 AND 3:36 offered in 73. Sure sounds
like a 3:08. If Your courious look on bottom of rear end housing on
the flange where rear cover bolts on. Should be 2 letters along with
some numbers stamped into housing. The letters denote ratio, AW is
3:08 , AX or LR is for 3:36.
like a 3:08. If Your courious look on bottom of rear end housing on
the flange where rear cover bolts on. Should be 2 letters along with
some numbers stamped into housing. The letters denote ratio, AW is
3:08 , AX or LR is for 3:36.
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by chevylit
Among others there was a 3:08 AND 3:36 offered in 73. Sure sounds
like a 3:08. If Your courious look on bottom of rear end housing on
the flange where rear cover bolts on. Should be 2 letters along with
some numbers stamped into housing. The letters denote ratio, AW is
3:08 , AX or LR is for 3:36.
like a 3:08. If Your courious look on bottom of rear end housing on
the flange where rear cover bolts on. Should be 2 letters along with
some numbers stamped into housing. The letters denote ratio, AW is
3:08 , AX or LR is for 3:36.
Thanks... Im gonna go take a look
Be right back
Melting Slicks
Joined: Dec 2000
Posts: 3,364
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
Bob, the lower "ears" on the diff cover are notorious for breaking. Usually around the bolt holes. That's when they came out with the heavy duty cover like you have now.
Thread Starter
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Well, the letters say LR which would make it a 3:36
I cant see that bieng correct with 2,600 RPM @ 70 mph and 3,500 rpm @ 100 MPH
Perhaps it was rebuilt to different specs somewhere during its life
I cant see that bieng correct with 2,600 RPM @ 70 mph and 3,500 rpm @ 100 MPH
Perhaps it was rebuilt to different specs somewhere during its life
