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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: 1976Scottsdale on October 03, 2007, 08:17:26 pm

Title: Is there a trick to getting the shifter plate back on an SM465
Post by: 1976Scottsdale on October 03, 2007, 08:17:26 pm

I had to take the shifter plate off of my 4 speed iin my truck and now it will go on but it won't shift, what do I do?  I am trying to fix it because my TH400 is broke so I am going back to the 4 speed.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: VileZambonie on October 03, 2007, 09:32:33 pm

? Isn't it a quick release top loader?

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: Captkaos on October 04, 2007, 09:12:58 am

Agreed, is it the type that has the plate on the top with internal rails or it it the type with the plate on the side with external rails?

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: joesgarage71 on October 06, 2007, 11:30:17 am

 I seem to remember something about putting the top on in reverse or just as it starting to go in reverse.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: 76_Scottsdale on October 23, 2007, 11:38:06 pm

I have this problem too. It's the kind with a top plate with internal rails but it's tricky trying to get the selectors to line up with the gears. Any ideas?

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: Captkaos on October 24, 2007, 08:48:41 am

Did you take the plate off or just pull the shifter out of the cover?

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: 76_Scottsdale on October 25, 2007, 05:36:59 pm

I took the entire top plate off to clear the shifter when I took out the tranny.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: 76_Scottsdale on October 29, 2007, 05:30:02 pm

Still no tricks to getting this back on?

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: VileZambonie on October 29, 2007, 06:39:43 pm

Post pix so we can see what you did and what you have please

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: Captkaos on October 30, 2007, 09:55:38 am

So removed the bolts holding the shifter and the rail off?  You will need to make sure the forks are re-aligned to get it back together.  Pics would definitely help.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: VileZambonie on October 30, 2007, 03:55:37 pm

(http://i6.photobucket.com/albums/y228/Sabaka454/linkage.gif)
Transmission and shifter levers must be in Neutral position at time of rod assembly. A 0.250 inch gage pin must fit freely into gage pin hole when shifter levers are positioned as outlined above.

Some 1982-83 C/K models equipped with V8-379 diesel engine and four speed 117mm. transmission may exhibit hard shifting, bearing or gear noise, or Improper clutch operation. The above mentioned complaints may be caused by the transmission top cover protruding beyond the front face of the transmission, resulting in transmission to engine misalignment If the vehicle exhibits an of the complaints noted, proceed as follows:



Raise and support vehicle.
Using a 0.005 inch feeler gauge or shim, check for gaps between transmission and clutch housing.
If a gap or separation is noted, check for interference between top cover and clutch housing. If interference exists, proceed to next step.
Loosen, but do not remove, transmission to clutch housing attaching bolts.
Remove transmission to cover, then grind excess material from forward side of cover until proper transmission to clutch housing clearance is
obtained. Deburr ground edges.



Wash cover with suitable solvent then torque transmission to clutch housing attaching bolts to 100 ft. lbs .
Install reworked top cover, using a new gasket.
Torque top cover attaching bolts to 20 ft. lbs. , then lower vehicle.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: 1976Scottsdale on October 31, 2007, 10:52:32 pm

Wrong kind for me anyway.  Mine is the big heavy toploader model that has the reverse rail that reaches like 9" down to the bottom of the case.  No big deal though, got mad at it and kept its twin brother, scrapped the other one along with the NP205 and old front axle and drivelines... well, they are all on the trailer anyway.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: 76_Scottsdale on November 02, 2007, 01:26:26 pm

Mine too is the top loading with internal rails, the pics are for the other kind. I guess I just need to line up the gear selectors and push it down in there.

Title: Re: Is there a trick to getting the shifter plate back on an SM465
Post by: VileZambonie on November 02, 2007, 07:37:24 pm

So are you saying you removed the top plate with the shift forks? If so you need to have the trans in the correct range first...

Move the reverse shifter fork so that reverse idler gear is partially engaged before attempting to remove cover. Forks must be positioned so rear edge of the slot in the reverse fork is in line with the front edge of the slot in the forward forks as viewed through tower opening.