Replacing T-56 six speed with an Auto? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HTX86chevy · 11-24-2016, 05:58 PM

Hey guys, I just bought a nice 1972 stepside. The guy I bought from did most of the work Himself. It has a LS1 from a 2001 SS Camaro with a .598 comp cam and a 6 speed T-56 tranny. Also has a rear end from a 77 town car (If I remember correctly).

Anyway, the thing is completely overpowered in my opinion and I am not a fan of Standard Transmissions. Anyway to tone it down a bit and swap the tranny to something Automatic?
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HTX86chevy · 11-24-2016, 05:59 PM

Posted via Mobile Device

ls1nova71 · 11-24-2016, 10:20 PM

Well it's carb'd so you can run pretty much any transmission behind it with not a lot of difficulty.

**1970 CST Short Wide** · 11-25-2016, 02:21 AM

What brand headers are those. Maker or part # would be cool if you know
Thanks

Paul Y · 11-25-2016, 03:16 AM

Nice truck.

If you want to sell the complete t56 set up let me know.

P.

ChuckLee · 11-25-2016, 05:40 PM

Quote:

Originally Posted by HTX86chevy

Anyway, the thing is completely overpowered in my opinion and I am not a fan of Standard Transmissions.
Posted via Mobile Device

I said the same thing once.....................

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then i woke up from that nightmare

super nice ride. what you pay for it if you don't mind me asking? curious to know what these go for completed.

crazy longhorn · 11-29-2016, 08:31 PM

Well, my preference, would be to row that stick shift!That said, it is your truck... do what you want, & have fun

In your spot, I would opt for a 4l80E trans. Set up with the aftermarket controllor....or go full manual shift? You may have to play with the shaft lenght, but talk with Cline barger. He is the guru here on auto trans builds/mods

longhorn

Tom · 11-30-2016, 04:54 PM

You bought a holy grail of manual trans swaps and you want to get rid of it. Amazing. Nice truck though.

elf w/capital T · 11-30-2016, 09:07 PM

T-56 would be much better than my nv3500, if you plan to sell please let us know! lol

11-24-2016, 05:58 PM	#1
HTX86chevy Registered User Join Date: Feb 2010 Location: Houston, Tx Posts: 349	Replacing T-56 six speed with an Auto? Hey guys, I just bought a nice 1972 stepside. The guy I bought from did most of the work Himself. It has a LS1 from a 2001 SS Camaro with a .598 comp cam and a 6 speed T-56 tranny. Also has a rear end from a 77 town car (If I remember correctly). Anyway, the thing is completely overpowered in my opinion and I am not a fan of Standard Transmissions. Anyway to tone it down a bit and swap the tranny to something Automatic? Posted via Mobile Device Attached Images

11-24-2016, 05:59 PM	#2
HTX86chevy Registered User Join Date: Feb 2010 Location: Houston, Tx Posts: 349	Re: Replacing T-56 six speed with an Auto? Posted via Mobile Device

11-24-2016, 10:20 PM	#3
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,118	Re: Replacing T-56 six speed with an Auto? Well it's carb'd so you can run pretty much any transmission behind it with not a lot of difficulty. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

11-25-2016, 02:21 AM	#4
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,089	Re: Replacing T-56 six speed with an Auto? What brand headers are those. Maker or part # would be cool if you know Thanks __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

11-25-2016, 03:16 AM	#5
Paul Y Registered User Join Date: Jul 2013 Location: Essex Posts: 936	Re: Replacing T-56 six speed with an Auto? Nice truck. If you want to sell the complete t56 set up let me know. P. __________________ Woody's Build - http://67-72chevytrucks.com/vboard/s...d.php?t=658621 If it goes wrong, I blame the Internet...

11-29-2016, 08:31 PM	#7
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	Re: Replacing T-56 six speed with an Auto? Well, my preference, would be to row that stick shift!That said, it is your truck... do what you want, & have fun In your spot, I would opt for a 4l80E trans. Set up with the aftermarket controllor....or go full manual shift? You may have to play with the shaft lenght, but talk with Cline barger. He is the guru here on auto trans builds/mods longhorn __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-30-2016, 04:54 PM	#8
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,711	Re: Replacing T-56 six speed with an Auto? You bought a holy grail of manual trans swaps and you want to get rid of it. Amazing. Nice truck though. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

11-30-2016, 09:07 PM	#9
elf w/capital T Registered User Join Date: Feb 2011 Location: North Carolina Posts: 993	Re: Replacing T-56 six speed with an Auto? T-56 would be much better than my nv3500, if you plan to sell please let us know! lol



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