Volvo RWD 140-160 Forum

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should I try getting a shop to rebuild my diff? 140-160

uid 14369's pic
posted by  KLR142 on  Mon May 26 14:15 CST 2003
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last visit: Mon May 9 12:44 CST 2011
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Can't they rebuild it and put in a LSD and replace/build the bearings also? Or should I just look for a used rearend?
Thanks,
Kyle

P.S. does anyone have any previous experience with this? any clue on costs?








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    should I try getting a shop to rebuild my diff? 140-160

    posted by  Harv on  Tue May 27 16:14 CST 2003
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    My friend just built his rear end with a Quaffe LSD. Quaff doesn't sell one for the 140 series but as we now know the 240 diff is the same (Dana 30). I think 900 for the diff and like 350 to install it with new bearings.

    john








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    should I try getting a shop to rebuild my diff? 140-160

    uid 779's pic
    posted by  matt b on  Mon May 26 16:40 CST 2003
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    That would be up to you I reckon...

    But I would think a straight rebuild of your current rear would be about $500 give or take. If you have a limited slip put in, you're probably looking at closer to a grand.

    A used one from a scrap yard shouldn't cost more than a couple hundred. And you probably don't have enough power to really make use of a limited slip yet... unless you like to go 4 wheelin' like I do.

    I'd go for a used rear, and keep your old one aside for a limited slip conversion/rebuild down the road when you can use it....

    And...my cost estimates are totally out of the blue and are absolutely not based on anything solid except my own experience with the potential work involved...

    -Matt








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    should I try getting a shop to rebuild my diff? 140-160

    posted by  rhaire on  Mon May 26 14:34 CST 2003
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    Well. I guess rebuild it and put in an LSD are kind of mutually exclusive. The units are so different. I got an LSD out of an '83 240 and had the cracked cross shafts and clutches replaced. In it went and it is nice, but it looks nothing like the open rear end I now have on the shelf. I am not sure if Dana makes a unit identical to the Volvo LSD but I do not think so. Is the Detroit tru-track (something like that) the one people like?








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      should I try getting a shop to rebuild my diff? 140-160

      posted by  Winnipeg164 on  Mon May 26 23:57 CST 2003
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      Along the same lines.....will the 75 164e Diff fit into a 74 164e or are the totally different???








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        should I try getting a shop to rebuild my diff? 140-160

        posted by  rhaire on  Tue May 27 00:33 CST 2003
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        Well, I know some 164 LSDs (w/ handling package) have served well in 240s so I would be shocked if your swap would not work. I use a good gear shop that knows instantly what works and what is needed. A Dana 30 is a Dana 30 pretty much. So, I am no expert, but I would certainly bet your swap would work.








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          should I try getting a shop to rebuild my diff? 140-160

          posted by  iadr on  Tue May 27 07:30 CST 2003
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          Winterpegger ;) - a 1975 164 uses 240 rear suspension, so an entire 240 axle will fit. It is the only 100 series car that that is true of.

          The internal parts will all interchange. Just because they look different doesn't mean the bearing positions are different.

          The SCCA ITB class has been dominated by 140's over the last few years. I have it confirmed in private emails that the vast majority of the successful cars run True-tracs. To me this type of moderate hp road racing is the closest motorsport to aggressive street driving, so on that basis I would have a recomendation to use the True trac over other brands.
          Also, noted turbo 262 rallyist John Lane found the True-trac to be by far the most durable. He put through approx 500 ft-lbs of torque, eventually breaking the axles, but never the differential. He mentioned the Dana unit to be the weakest, and a ZF unit to be in between.
          Dana axles are far more difficult to service than typical Ford 8 & 9", Chrylser 8&3/4 etc. Much more labour intensive and cannot be done out of the housing. A Canadian (BC)Volvo racer and rear axle service professional is Ian Wood. Do a search. He may rebuild a core axle that you could go and pick up.








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            should I try getting a shop to rebuild my diff? 140-160 1968

            uid 14369's pic
            posted by  KLR142 on  Tue May 27 19:59 CST 2003
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            So I should try to source a used TruTrac for a dana 30 and have a shop put it in my diff with new bearings. Or should I just have them put in a new trutrac? how much might this cost me. And this is just a bolt in to the original casing right?
            Thanks again,
            Kyle








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              Best, easiest...I hope. 140-160 1968

              posted by  someone claiming to be shayne on  Wed May 28 08:11 CST 2003 [RELATED]

              I don't know if you got my e-mail but I sent the info for Six States.
              Yes, Dick can probably find a used limited slip for your type 30 (regardless of brand name-trutrac, etc.) no matter what splines are there. It would certainly be worth calling "The Man With The Answer', his shop is in your town, after all.








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                Yeah, i read it after I wrote the post, Thanks Shayne! NT 140-160 1968

                uid 14369's pic
                posted by  KLR142 on  Wed May 28 09:55 CST 2003
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                  Yeah, i read it after I wrote the post, Thanks Shayne! NT 140-160 1968

                  posted by  msulka on  Thu May 29 09:25 CST 2003
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                  I rebuilt the dana 30 in my v145. I have a shim kit and some other parts I may sell if you decide to do it.

                  here is a trick:

                  get new diff carrier bearings.
                  get the old ones off without destruction (splitter)
                  use a die grinder and sprial-paper drum burr to open the inside of the old bearings just a little (it is hard metal and will take a while). make them so they press on and off the carrier by hand.

                  shim it up according to specs with the old bearigns, then replace the bearings with the new ones. you should hit it right on the first try! (i did a 44 this way, and it worked. but I only did one. I don't think it was luck.)

                  if you decide to have an error, error on the tight side. it will be stronger but noisier. you should not hear in in the older cars.

                  the better LSDs come from DANA europe. even for the 44 in a pickup, Dana Europe still makes the much preferred pow'r lok. the trash-lok breaks easily, but I don't think your volvo will break even a 30.

                  The 30s in Volvos were a little nicer--they have the cooling fins, drain with magnet, etc.







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