I know not all carriers are the same. How do you tell the difference? My friend has 2 67 12 bolts. Both peg legs. 1 has 3:08's, the other has 3:56's. He wants to put a new carrier in 3:08 rear to put back in 67 SS car. If I buy the carrier and pay to have his 3:08 put back together, he'll give me the rearend with 3:56's. But I think I'll buy a posi carrier for 3:56 rear, and give him the carrier out of it. Are they all the same series?

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Steve
67 SS 396,4-sp
67 RS 327,4-sp
72 RS 350/350
69 4X4 suburban 350,4-sp
73 3/4 ton 454/400
http://www.geocities.com/stevocamaro

just remember 67 housings have only mono perches

Yea, I know. Thats what I want it for.

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Steve
67 SS 396,4-sp
67 RS 327,4-sp
72 RS 350/350
69 4X4 suburban 350,4-sp
73 3/4 ton 454/400
http://www.geocities.com/stevocamaro

Lets dig into this a little deeper.

Whats the diference between truck and big car 12 bolt rearends, if any, compared to Camaro, Chevelle and Nova rearends, besides width of course????? pdq67

Let me guess. The carrier size? I've heard there's a 3 series and a 4 series for camaro chevelle and nova 12's. True?

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Steve
67 SS 396,4-sp
67 RS 327,4-sp
72 RS 350/350
69 4X4 suburban 350,4-sp
73 3/4 ton 454/400
http://www.geocities.com/stevocamaro

Steve,
Below are the three carriers:
above 3.08
3.08 thru 3.73
4.10 and lower

You should be able to swap carriers and the middle one is available from Eaton (OEM) again. http://www.eaton.com/product/index.html

David

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Check my web page for First Gen Camaro suspension info:
David's Homepage (http://ourworld.compuserve.com/homepages/David_Pozzi/)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

Hey I have found a 12 bolt posi unit that has a 2:73 ratio on it,it is out of a Impla & I have 3:08 or 3:07 gears in my 67 camaro will this carrier fit my gears with out a spacer?

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johnny

pdq,

Truck 12-bolt rearends have a TOTALLY different R&P than car 12-bolts. The truck pinion diameter is 1.438" versus the car's 1.625" diameter pinion. What this means is the car 12-bolt is much stronger than the truck. The car 12-bolt has an oval shaped rear cover, whereas the truck has an irregular shaped cover, it dips on the top and bottom.

Also, the truck 12-bolts were never put in cars. If a car has a 12-bolt, it is most likely a 1.625" pinion with an oval shaped cover, unless someone has swapped them. Hope this helps. Take care.

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69 SSRS Frame-off Resto
81 Z-28 377ci Drag Car

69SSRS,

Thanks for the info on the difference btween rearends. I would a thought that since a truck gets worked by hauling and pulling stuff that it would have the stronger rearend. pdq67