c10 overdrive early 80's - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sewanhaka62 · 01-31-2002, 10:38 AM

hi

does anyone know what years that chevy used the new process od 4 speed and in what models

also what were the ratios for 1-2-3-4od

where these the same as the mopar new process
used behine the darts and dusters of the same
time

thank you bob

gchemist · 01-31-2002, 11:02 AM

"bob"

The 700R4 was first available in '82. Trucks got them in '83. The drive ratios are 1-3.06:1, 2-1.63:1, 3-1:1 and 4-0.70:1. They sure are fun to drive. I have a beefedup 700R4 and I love to punish it.

The gear ratios are not the same. The first gear on the 700R4 is lower. Check this page for the ratios on other transmissions. http://www.tciauto.com/tech_info/gear_ratios.htm

[This message has been edited by gchemist (edited 01-31-2002).]

**crossy** · 02-01-2002, 12:05 AM

'G' the trans he is talking about is a rarely used stick tranny. dave

JJR · 02-01-2002, 08:58 AM

My Hollanders CD shows the New Process OD trans was used from 81-87 in Chevy/GMC trucks and suburbans and 81/82 in vans. It has a side cover. Can't help with the ratios.

01-31-2002, 10:38 AM	#1
sewanhaka62 Registered User Join Date: Jan 2002 Location: berwick,penn Posts: 98	c10 overdrive early 80's hi does anyone know what years that chevy used the new process od 4 speed and in what models also what were the ratios for 1-2-3-4od where these the same as the mopar new process used behine the darts and dusters of the same time thank you bob

01-31-2002, 11:02 AM	#2
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	"bob" The 700R4 was first available in '82. Trucks got them in '83. The drive ratios are 1-3.06:1, 2-1.63:1, 3-1:1 and 4-0.70:1. They sure are fun to drive. I have a beefedup 700R4 and I love to punish it. The gear ratios are not the same. The first gear on the 700R4 is lower. Check this page for the ratios on other transmissions. http://www.tciauto.com/tech_info/gear_ratios.htm [This message has been edited by gchemist (edited 01-31-2002).] __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

02-01-2002, 12:05 AM	#3
crossy Oh,you can't buy that new Join Date: Apr 2000 Location: Pennsville,N.J. 08070, USA Posts: 2,042	'G' the trans he is talking about is a rarely used stick tranny. dave __________________ "been there, done that, ruined the T-shirt". 2007 LBZ GMC Sierra, ECSB 2006 LM7 RCSB Silverado 98 Vortec project. 94,3500,6.5L 4L80 81 SWB GMC POS finally gone 73 Pinto, stock, w/CragarSS's-eww 84,C10 SWB-Yella,stock 86 K10 SWB-Red, hopped up 305,4/S LOTS of Cummins trucks.

02-01-2002, 08:58 AM	#4
JJR Registered User Join Date: Apr 2000 Location: Leesburg, GA Posts: 746	My Hollanders CD shows the New Process OD trans was used from 81-87 in Chevy/GMC trucks and suburbans and 81/82 in vans. It has a side cover. Can't help with the ratios. __________________ FOUNDING MEMBER OF THE DRUM BRAKE CLUB Second Owner 70 C-10 Second Owner 93 GMC C1500 Third Owner 99 C2500 Crew Cab Short Bed

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