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Trans for a 46 1/2t
#1416656 Sun Jul 11 2021 11:22 PM
Joined: Jan 2008
Posts: 308
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bigedpa Offline OP
'Bolter
Trying to line up a trans for my 46 project. Staying with a torque tube rear. But a few questions. Is there a dual master cylinder that bolts into the factory position on a 41-46 trans? If no then that opens up more possibilities for a donor trans and I will fab a mc bracket. Of all the possible trans options (40s/50s) , are all 4 speeds granny geared? My plan was/is an “original”-ish trans and a rear gear 3.55 conversion. Lots of 55+mph driving in my area.

Appreciate your time and input

Ed


"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
Re: Trans for a 46 1/2t
bigedpa #1417095 Thu Jul 15 2021 07:55 PM
Joined: Mar 2000
Posts: 784
4
'Bolter
Ed, You can fab a bracket for a dual master fairly easily. I can shoot you some pictures of what I did if you want. Send me an email and I'll get back to you.

George

Re: Trans for a 46 1/2t
bigedpa #1417169 Fri Jul 16 2021 11:38 AM
Joined: Apr 2005
Posts: 2,916
C
'Bolter
Something to think about is the master cylinder DOES NOT have to be in the factory position but can be moved back to an open area. The stock diameter 3/8 pedal to MC rod is good for about a foot longer and then larger needed if longer distance. I don't cut a new hole in the floor for MC access but just fill from underneath with a mirror and douche ball.


Evan
Re: Trans for a 46 1/2t
46forme #1417192 Fri Jul 16 2021 02:37 PM
Joined: Jan 2008
Posts: 308
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bigedpa Offline OP
'Bolter
Thanks. George, I will pm my email to you... I have seen a lot of different relocation assemblies. my build is not. a restoration by any means. I was trying to keep as stock as I could, but if relocating makes more sense, so be it.


"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
Re: Trans for a 46 1/2t
bigedpa #1418168 Mon Jul 26 2021 02:57 AM
Joined: Oct 2018
Posts: 159
T
'Bolter
Originally Posted by bigedpa
Of all the possible trans options (40s/50s) , are all 4 speeds granny geared?
AFAIK, that's true. The Chevrolet 3-speed tranny is preferred as it has synchro on 2 and 3, and 1st is geared so low you hardly use it most of the time.

Originally Posted by bigedpa
My plan was/is an “original”-ish trans and a rear gear 3.55 conversion. Lots of 55+mph driving in my area.

Ive been told that will work well, I had planned to do that...but now in up to my eyeballs in a T5 conversion, swapping out the torque tube, swapping in a '55 Series 2 axle, and will put 3.38:1 gears in it.

Good luck with your conversion, the r/p are the biggest factor, but to bring down RPM overall on the highway you need OD, IMO. Any pics of your truck?

Re: Trans for a 46 1/2t
TradToolworks #1418348 Tue Jul 27 2021 05:03 PM
Joined: Jan 2008
Posts: 308
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bigedpa Offline OP
'Bolter
Trad. Sorry no pics yet. I wouldn’t know which part to show. They are pretty much all on shelves anyway. Took 12 years, 1 move and a pandemic to get the chassis painted. Front end is being assembled now. So next is engine trans rear. Hopefully soon.

Last edited by bigedpa; Tue Jul 27 2021 05:04 PM.

"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
Re: Trans for a 46 1/2t
bigedpa #1418419 Wed Jul 28 2021 12:06 AM
Joined: Oct 2018
Posts: 159
T
'Bolter
At least the pandemic did someone some good...you got your chassis painted and now getting the front end assembled... nanner


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