Transmission Swap 66 C10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BMCFAM4 · 03-29-2020, 11:00 AM

I have been working on a 66 C10 restoration for 4 years, I am finally at the point where I need to figure out my new transmission. The truck came from the factory with a 283 engine, 3 on the tree transmission and 3.73 12 bolt rear end. I think my transmission hump would be considered low profile. Do any of you folks know of an OD automatic or 5 speed swap that will fit in with the low profile hump?

**The Rocknrod** · 03-29-2020, 12:12 PM

I have a low hump. I have a 350 engine and a 200R4 transmission set up that fits. I used the POL engines stands, with them you must trim back the upper frame rail a bit on each side. The trans cross-member is also from POL.

**pdxhall** · 03-29-2020, 12:41 PM

I'm running a 700r4 with a CPP trans cross member. fit with no issues with small hump.

SS317 · 03-29-2020, 04:50 PM

I have a 350 tied to a 700R4 with a low hump. Best upgrade I've done to the truck.

**jocko** · 03-29-2020, 06:56 PM

swapped a T5 into my 66 C10 283/3OTT/3.73, no regrets

other than the fact that I sold the truck...

http://67-72chevytrucks.com/vboard/s...d.php?t=482069

BMCFAM4 · 03-29-2020, 10:39 PM

Thanks for the info.

LostMy65 · 03-30-2020, 12:59 PM

I had the same question.
Thanks

03-29-2020, 11:00 AM	#1
BMCFAM4 Registered User Join Date: Dec 2015 Location: Plover, WI Posts: 2	Transmission Swap 66 C10 I have been working on a 66 C10 restoration for 4 years, I am finally at the point where I need to figure out my new transmission. The truck came from the factory with a 283 engine, 3 on the tree transmission and 3.73 12 bolt rear end. I think my transmission hump would be considered low profile. Do any of you folks know of an OD automatic or 5 speed swap that will fit in with the low profile hump?

03-29-2020, 12:12 PM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Transmission Swap 66 C10 I have a low hump. I have a 350 engine and a 200R4 transmission set up that fits. I used the POL engines stands, with them you must trim back the upper frame rail a bit on each side. The trans cross-member is also from POL. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

03-29-2020, 12:41 PM	#3
pdxhall Senior Member Join Date: Mar 2011 Location: Tucson, Arizona Posts: 2,084	Re: Transmission Swap 66 C10 I'm running a 700r4 with a CPP trans cross member. fit with no issues with small hump. __________________ Sanity'66 http://67-72chevytrucks.com/vboard/s...d.php?t=515110 Long bed, Fleetside, Small back window I've Done So Much, With So Little, For So Long, That Now I Can Do Anything With Nothing.

03-29-2020, 04:50 PM	#4
SS317 Registered User Join Date: Dec 2010 Location: Fruita, Colorado Posts: 222	Re: Transmission Swap 66 C10 I have a 350 tied to a 700R4 with a low hump. Best upgrade I've done to the truck. __________________ 1966 Chevy C-10 350 Engine 700R4

03-29-2020, 06:56 PM	#5
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: Transmission Swap 66 C10 swapped a T5 into my 66 C10 283/3OTT/3.73, no regrets other than the fact that I sold the truck... http://67-72chevytrucks.com/vboard/s...d.php?t=482069

03-29-2020, 10:39 PM	#6
BMCFAM4 Registered User Join Date: Dec 2015 Location: Plover, WI Posts: 2	Re: Transmission Swap 66 C10 Thanks for the info.

03-30-2020, 12:59 PM	#7
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Transmission Swap 66 C10 I had the same question. Thanks __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035



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