|06-06-2013 09:15 PM|
Super T-10 mysterious hole
You are missing the alignment dowel pin which is supposed to be pressed into the mid plate. It pilots into a hole in the main case and also provides alignment for the tail housing extension. The original one may have fallen into the bottom of the main case. Let's hope it is stuck on the magnetic drain plug.
You can't insert the dowel pin from the outside of the tail housing because of the angled surface of the casting. You will have to remove the tail housing extension and that means the trans must be pulled from the car.
While you are at it, take off the side cover and retrieve the dowel pin from the bottom of the case. I do have several of them if you don't find it.
PM me (private message).
|05-26-2013 04:43 AM|
hole in case
I made my own alignment pin from a drill bit. I forget the size. I measured the hole and matched up a drill bit and used the shank. Worked perfectly.
|05-16-2013 07:25 AM|
Another 4speed back on the streets
|05-15-2013 09:53 PM|
|05-15-2013 07:28 AM|
|AutoGear||When Richmond went under; we lost a lot of our T10 business. Richmond was selling T10s through Summitt for less than I could buy one for with a 'wholesale account' Their prices got insane on parts and quality was going every which way. We had some stuff made in italy; I think I have some 2.64 1st gear ratio parts; and we can put rebuilder kits together; but a lot of your so-called 'hard parts' ie Midplates, castings and gearsets, I do not have. G Force is as good a place as you're going to find, they may hit you for a minimum order on a credit card transaction. Check your seals for the tailhousing, shifter shafts and pull the front bearing retainer (snout) and look at the little oil seal in there as well. You may want to replace them.|
|05-14-2013 05:15 PM|
1000043008 Midplate dowel
T10-55 OEM T10 gasket set
|05-14-2013 04:13 PM|
|05-14-2013 03:29 PM|
|lmsport||GForce sells every part for a T10, but I would try poster Autogear first.|
|05-14-2013 12:58 PM|
I went to GM and looked through some old dusty books. No luck.
I called Richmond Gear and they said there is an alignment dowel pin that is pressed into the bearing retainer plate. That pin locates the tail housing and the case. And NO they don't sell the pin. So I hope maybe I have the pin in with all the zillions of old needle bearings. But even if I find it...how did it fall out in the first place?
|05-14-2013 07:43 AM|
|Silver Surfer||There is a proper vent on the case above the side cover. The only thing I can think of is that maybe the gaskets changed and this hole should be blocked off by the bearing plate retainer gasket. I guess I will fill this in with some sealer. Perhaps it will too difficult to find a proper welch plug. I mic'd the hole and it is about .300" diameter.|
|05-14-2013 07:39 AM|
Hmmm I don't remember that hole. There could have been a locating dowel pin in there at some time. Or maybe someone tried to incorporate a vent (if both ball bearings have shields covering between the races on both sides, it should have had a vent). Unless someone else says otherwise here, plug it.
I dont have a T10 extension (tailhousing) handy to look at.
Anyone out there have a T10 tail they can eyeball for me?
|05-13-2013 09:05 PM|
|05-13-2013 02:32 PM|
Loctite 518 for aluminum to aluminum; loctite 5900 for aluminum to aluminum and loctite 242 (blue) if you're going to be in and out of the unit often. Thats from my Loctite Rep.
In the shop we use Valco aluminum colored RTV with their 'tube grip' dispenser. I HIGHLY recommend the Tube Grip if you use a lot of toothpaste type tubes of sealer. You can lay a bead so narrow you can write your name with it in script. Valco is out of Cincinnati and a great company to do business with.
|05-13-2013 02:23 PM|
Can you give me a specific brand/type of RTV to use? I am not sure how to validate if it is low expansion or not.
|05-13-2013 02:08 PM|
|AutoGear||I'd use a low expansion RTV. I'll PM you with our service manual.|
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