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Car Forum / Antique and Collectibles / Studebaker / May 2008Truck Rear End Needed
Hi All I have a '51 2R5 that is running a 289 V8 with 3 spd OD transmission. Some years back when I was probably not thinking straight, I put a Ford 8" rear end in it, thinking that I would be easier to have for the long haul. The rear end has 4:09 gearing and it has served me pretty well, but there have always been a few problems. First of all it is a 5 on 4 1/2" bolt pattern instead of the 5 on 5" that the truck has on the original rear end. That makes having a spare a bit of a problem since the fronts and rears are different. Secondly, and not to critical is that the stock hub caps don't fit and the wheel spacing is off, causing a lot of grief. The latest and most serious problem is the fact that the drivers side axle bearing has come apart, depositing ball bearings and other pieces of metalic debris into the rear end center section. Lots of not to loud, but not to good of noises coming from it in the last few miles..... So, what to do? I could rebuild it or replace it. I could go to Curry and have them build me a Ford 9" with the 5 on 5" bolt pattern and the proper width for the truck, but that would be pricey!!! Do you have a solution? Here is what I would ideally need. A Twin Traction rear end with 3:80 or so as a ratio. 5 on 5" bolt pattern and the proper width. Barring that, how about a stock rear end with the same ratio that I am running now (4:09) or down to the 3:80 range. Single traction is OK. OR, maybe someone has a different rear end swap that works well. You can email me at allen at ebold dot com or give me a call at 831 336-3621. I am in the San Francisco Bay area. Thanks in advance for your help. Allen I'm not that familiar with the trucks. If the stock rear ends are tapered axles then you want to avoid them. How about another used 8" or even a 9" They come in several widths and I think you can have the axles re-drilled for the correct pattern. Let's see what others think. > Hi All > I have a '51 2R5 that is running a 289 V8 with 3 spd OD transmission. [quoted text clipped - 39 lines] > Thanks in advance for your help. > Allen Truck tapered axles are not a problem. They are a lot heavier than the passenger car axles. JT > I'm not that familiar with the trucks. If the stock rear ends are > tapered axles then you want to avoid them. How about another used 8" or [quoted text clipped - 44 lines] >> Thanks in advance for your help. >> Allen >I'm not that familiar with the trucks. If the stock rear ends are tapered >axles then you want to avoid them. How about another used 8" or even a 9" >They come in several widths and I think you can have the axles re-drilled >for the correct pattern. Let's see what others think. good luck finding one, but a Ford Torino has a 9", and fits QUITE NICELY under my Hawk. late 80's?? --Shiva-- ** Posted from http://www.teranews.com ** > I'm not that familiar with the trucks. If the stock rear ends are tapered > axles then you want to avoid them. How about another used 8" or even a 9" > They come in several widths and I think you can have the axles re-drilled > for the correct pattern. Let's see what others think. Alex, Thanks for the Reply. I tried to have the 8" Ford axles drilled with the 5 on 5" bolt pattern, but the fine folks at Curry tell me that the diameter of the axle flange is to small to drill at that pattern. They say that 4 3/4" diameter is as large as it can go. I would replace the rear end with a Ford 9" unit from someone like Curry, but when you add all the parts up, it is at least $2500 not counting shipping. Does anyone know what rear ends will swap into the narrow body truck? I could get one from a wrecking yard and put gears, bearings and brakes on it, and if it was a 9" Ford, I could get axles drilled for the 5 on 5" pattern. I could use a car rear end, but if I am not mistaken, they are the smaller bolt pattern as well. Thanks Allen I would find a Champ rear end with 4.10/4.11's. The Champ rear is 3" wider but thats only 1 1/2 per side. Theres enough room under the wide or narrow box fender wells for the extra width. AFAIK the spring plates and the shock mounts are welded on the tube in the same place. The truck Dana 44's (referred to as Spicer 2211 in the shop manual) have thicker axles and bigger bearings than the car units. Never seen one fail or have the axle break. Course they already have the right bolt pattern. >> I'm not that familiar with the trucks. If the stock rear ends are tapered >> axles then you want to avoid them. How about another used 8" or even a 9" [quoted text clipped - 21 lines] > Thanks > Allen  Signature2R10 2R14 3E38 4E3 4E28 5E13 7E7 8E7 8E12 8E28 etc etc It sounds like several people have a Stude rear end for you and that would be the way to go. But the 9 inch route does not have to be so expensive as the Curry option. I found a Ford rear end in the junk yard for $150 and then paid $250 for a good used posi unit center section that had the gear ratio I wanted. >> I'm not that familiar with the trucks. If the stock rear ends are tapered >> axles then you want to avoid them. How about another used 8" or even a 9" [quoted text clipped - 21 lines] > Thanks > Allen Aren't the Chevy truck rear ends 5 on 5 patterns? Are they too wide for the Stude pickup? Another idea is to get a Ford truck 9" rear end with the flange axles. they have a 5 on 5 1/2 pattern which will have plenty of room to be drilled for the 5 on 5 pattern. I know a guy who will narrow a 9" rear for only a few hundred dollars. He is an expert machinist and is in Northern CA. Let me know if this is something you would want to consider. He did the 9" under my 54 Coupe some years ago and its been great. I've used a couple different ratios in it. Its the ideal rear for someone who wants that option. On Apr 26, 9:57 pm, salst...@gmail.com wrote: > Aren't the Chevy truck rear ends 5 on 5 patterns? Are they too wide > for the Stude pickup? [quoted text clipped - 6 lines] > great. I've used a couple different ratios in it. Its the ideal rear > for someone who wants that option. I like the idea of doing a Ford 9" and will start looking for a used unit. The Chevy is an option as well, but I have no working knowledge on which Chevy rears might be compatible. Does anyone know the flange to flange width for the stock rear end? The Ford 8" that I have in the truck now was out of a Mustang and was not the exact width, but close. If anyone has a stock rear and could measure it for me, it would really help in finding the best fit or if I have a wider one narrowed, it would give me the width to work to. THANKS!!! If possible, try to find one you don't need to narrow. There were several widths available. The stock axles taper down to a smaller diameter just past the splines. If you narrow the axles there is not enough metal to machine new splines. That means you have to have custom axles made for about $600. > On Apr 26, 9:57 pm, salst...@gmail.com wrote: >> Aren't the Chevy truck rear ends 5 on 5 patterns? Are they too wide [quoted text clipped - 19 lines] > > THANKS!!! You need to watch the GM differentials as there is a service bulletin that only dealers know about. For many years in the 80s GM used too soft a steel for the axle shafts and as a result the ends would wear down to the point that the clips would pop off and then an axle would slip out of the housing. The service bulletin had specifications for wear and once the limit was met then the axles met the specification for warrantee replacement. The problem was with all GMs not a specific model.........even seen the problem in some TT Corvets. As for the nine inch Ford that is the way I went for the Toyota Tcab and it fits just fine. Pulled the differential out of a mid 80s Heavy Half ton. > Hi All > I have a '51 2R5 that is running a 289 V8 with 3 spd OD transmission. [quoted text clipped - 39 lines] > Thanks in advance for your help. > Allen Barry just picked up a 4.09 TT from me last week. It would be perfect for an OD truck. JT I have a Dana 44 from a 57 pick laying about, shipping may be an issue though :) Where are you at? > Hi All > I have a '51 2R5 that is running a 289 V8 with 3 spd OD transmission. [quoted text clipped - 39 lines] > Thanks in advance for your help. > Allen
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