The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 1954 3800 Rear axle

whitedog76 · 08-08-2020, 09:33 AM

The HO52 measures in at 62.5" WMS.

The 73-87 Cab&Chassis model is the best fit. They are 1/2 inch wider than the HO52.

The full float SRW model uses the same housing, tube length and axle shafts. The difference is in the hubs and brakes. It's 67" WMS-WMS. You would have to use a set of dually hubs and get creative with the brakes. You can use the HO52 hubs on these, with the appropriate bearings and get an axle that is around 64-65" WMS, but again you have to get creative with the brakes.

I originally had planned on using a SRW axle and the Dually hubs on my 3600. I obtained both. The brake mount flange would've needed to be torched off and moved on the axle. I then figured out that I could use the HO52 hubs and Drums from a van, which seemed to be the ticket. In the mean time, I robbed a rear disc setup off of a 2003 van, I never really made headway with it, but that's an option too.

After a 8.8 axle came available to me, I decided to go a complete different route. I figured there was no need to do such a heavy duty build on the 3600, when I'm never going to use the truck that way. If I had a 3800 truck I would've done the 14 bolt swap and front disc conversion.

08-08-2020, 09:33 AM	#16
whitedog76 Registered User Join Date: Jan 2014 Location: Peoria, IL Posts: 1,450	Re: 1954 3800 Rear axle The HO52 measures in at 62.5" WMS. The 73-87 Cab&Chassis model is the best fit. They are 1/2 inch wider than the HO52. The full float SRW model uses the same housing, tube length and axle shafts. The difference is in the hubs and brakes. It's 67" WMS-WMS. You would have to use a set of dually hubs and get creative with the brakes. You can use the HO52 hubs on these, with the appropriate bearings and get an axle that is around 64-65" WMS, but again you have to get creative with the brakes. I originally had planned on using a SRW axle and the Dually hubs on my 3600. I obtained both. The brake mount flange would've needed to be torched off and moved on the axle. I then figured out that I could use the HO52 hubs and Drums from a van, which seemed to be the ticket. In the mean time, I robbed a rear disc setup off of a 2003 van, I never really made headway with it, but that's an option too. After a 8.8 axle came available to me, I decided to go a complete different route. I figured there was no need to do such a heavy duty build on the 3600, when I'm never going to use the truck that way. If I had a 3800 truck I would've done the 14 bolt swap and front disc conversion.