Rear end interchangeability - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68lngbed350 · 08-14-2013, 03:51 PM

I have a corporate 4.57 rear in my 1968 3/4 ton 8 lug pickup with rear coil suspension. I found a 1959 chevy panel truck with a 6 lug coil corporate rear end with 4.11 gearing. My question is if I can simply swap the carrier (pumpkin) of the 6 lug 4.11 rear directly into my 4.57 8 lug rear? So my truck can have better freeway manners.

**TBONE1964** · 08-14-2013, 06:02 PM

The first thing I would ask is if the axle spline count is the same. You will not be able to swap the 1959 axles because the housings are more than likely different widths.

Will the 59 carrier bolt into the 68 housing? If it does, then your only problem maybe axle length and spline count.

08-14-2013, 03:51 PM	#1
68lngbed350 Registered User Join Date: Jun 2008 Location: Richmond,CA Posts: 26	Rear end interchangeability I have a corporate 4.57 rear in my 1968 3/4 ton 8 lug pickup with rear coil suspension. I found a 1959 chevy panel truck with a 6 lug coil corporate rear end with 4.11 gearing. My question is if I can simply swap the carrier (pumpkin) of the 6 lug 4.11 rear directly into my 4.57 8 lug rear? So my truck can have better freeway manners. __________________ 1968 C20 Stepside 350 sm465 4.57 - Summer Cruiser/Hauler 1980 El Camino- lil brothers dd. lt1 3.90 1970 Camaro-468 bbc t56 4.11 MONSTER! younger brothers project Last edited by 68lngbed350; 08-14-2013 at 04:01 PM.

08-14-2013, 06:02 PM	#2
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	Re: Rear end interchangeability The first thing I would ask is if the axle spline count is the same. You will not be able to swap the 1959 axles because the housings are more than likely different widths. Will the 59 carrier bolt into the 68 housing? If it does, then your only problem maybe axle length and spline count.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.