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Post Info TOPIC: semipost- my 73 chevelle ss 4 speed


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RE: semipost- my 73 chevelle ss 4 speed
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Got the Saginaw's side cover assembly all apart, cleaned, and reassembled with all new seals.  The TCS switch still works!  Even though the TCS will probably be bypassed by me :). Next up, the main event-.main gearbox rebuild!

 

 



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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



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Cool. That was the easy part. Now the fun part is next. Whatch out for all those needle bearings.

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Well done....Subscribed

Dan

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bigbowtielover wrote:

Cool. That was the easy part. Now the fun part is next. Whatch out for all those needle bearings.


 Won't be bad, after all, we're trying to ENCOURAGE Pat to rebuild his own 4 speed trans too! biggrin



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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



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Pat will get her done

Dan

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Thick grease helps to keep all those pesky needle bearings in place during assembly.

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OK, now that all the nasty cleaning part is over with for all these transmission parts, let's start rebuilding!  So tonight as you can see by the pictures, I was able to get the whole countershaft assembly done and put together,   The needle bearings weren't too bad, especially using that nice thick transmission assembly grease.  Only dislodged one on the back side, so I just left it out, I figure what's one missing out of so many gonna do?

 

Just kiddin' biggrin. Next I started disassembling the mainshaft, and I'm pretty sure I know the answer to this (as my Chilton manual said to stop unless I had a press or a puller).  As I'm pointing to with my pen in the last photograph, that rear bearing, is it pressed on real good?  Just seeing if it's just snug or if it really needs a press (and not one of my "homemade rigs").  Therefore before I damage anything, I figured I'd ask first.

It it does need  press, then I have a new (to me) transmission shop resource in West Chester called West Chester Transmissions.  I brought by extension housing to them today to ask if they could press out the old tailshaft bushing and press in my new one, and I asked if I could buy a plug from them so that I could fill the trans with fluid before installing and not have it spill out.  In 10 minutes, they switched the bushings, and also installed a brand new rear seal AND gave me a plug for it.  I tried to pay for it but he insisted don't worry about it.  I told hime I'd refer everyone to him, because of such a great service and gift today. 

 

 



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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



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One missing needle bearing could be a problem. When I did my 4 speeds, one came out. Took it back apart & put it in. Heard at the time all had to be there.

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Yep. Just like driveshaft u-joints. Can't leave any needles out or bad things happen.

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He DID say he was just kidding. Even put a smiley face after saying it.

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1965 Biscayne: 350, PG, 12-Bolt. PS, PB.

1970 Chevelle Malibu: 53 on 753.

Brian Daniel McClure: 1970-2015. R.I.P. Brother.



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Great job Kevin! Keep up the great work 👍🏽

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Yeah guys I was just joking on the missing needle bearing.

However, all kidding aside, does anyone have any thoughts on my mainshafr rear bearing question? Any "home rebuilders" been able to get the old bearing off and install the new rear bearing without a press?

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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



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I have 2 presses at my work and I have the bearing cups in my tool collection so I use that or get trans shop to re and re it.

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ok, sounds good, thanks for the input.

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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



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Mine was a Muncie instead of a Saginaw. I was able to change the rear bearing without a press. Gentle taps with a small hammer and brass drifts did the trick for me. I was ready to take it to a local machine shop if the hammer and drift did not work. If I was doing this on a regular basis I would invest in one of those $100 Harbor Freight presses.

Pat

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Yes.....the Harbor Freight presses are outstanding and American Made

Dan

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Got it separated, yes! I used my heat gun to warm things up a smidge, and realized that behind the bearing is a thrust washer that gets replaced, so I carefully pried in between the bearing and thrust washer. Then I realized they only shipped me one set of dogs and keys, when I need 2. Going to the trans shop tomorrow to buy another set (glad I discovered this before the weekend :))



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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



2 Door Post Power User!

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Posts: 13749
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Well done

Dan

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**SITE MODERATOR**

1969 Chevelle 300 Deluxe Post Sedan Frost Green

1970 Buick Skylark Post Sedan Gulfstream Blue

Owner of the 1969 SS396 300 Deluxe Post Sedan Registry

http://m.youtube.com/watch?v=PM3DE8qI2NY

https://m.youtube.com/watch?v=Yn4xEmGypUw



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Mainshaft completely disassembled:

 

 



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Kevin

1964 Buick Special Deluxe SOLD

 1973 Chevelle SS L48 350

M20 4 -speed

all numbers-matching



2 Door Post Power User!

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Posts: 13749
Date:
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Dan



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**SITE MODERATOR**

1969 Chevelle 300 Deluxe Post Sedan Frost Green

1970 Buick Skylark Post Sedan Gulfstream Blue

Owner of the 1969 SS396 300 Deluxe Post Sedan Registry

http://m.youtube.com/watch?v=PM3DE8qI2NY

https://m.youtube.com/watch?v=Yn4xEmGypUw

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