Quick 700R4 question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Project1970 · 05-08-2002, 08:26 PM

Okay, I'm probably going to get my 700R4 from www.phoenixhardparts.com, namely because they're local and that's a good price for a tranny ($750 after core). The core charge is the same regardless of the transmission style...if you go to their site, they sell them by year (82-86 or 87-92; year choice is a no-brianer, the 87-up ones are stronger), displacement (2.8, 4.3, or 5.7...the choice is easy, lol...), and 2WD or 4WD (here's where the choice gets interesting). From what I hear, the 4WD cases are stronger. The core charges are all the same...so, assuming the 4WD 700R4 comes with a tailshaft (since I believe newer ones have the transfer case bolt to the tranny in place of the tailshaft?), would that be the one I want for my '70 GMC? It's a mild 350, so a stock tranny should be more than fine.

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Project 1970 - soon to be seen at http://milhouse.treylis.org:81/

O'l Buck · 05-09-2002, 12:32 AM

the 4x4 case is different. The transfer case does bolt directly to the transmission and the output shaft in the tranny drives the splined hub in the t/c. unless there is a conversion kit or adapter I've never heard of, the 4x4 tranny won't work in a 2wd truck.

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Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s

Angel girl: 67 Cutlass convertible
330, 3spd stick

Greener: 90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE

no name yet: 72 442 under serious construction
my site:
http://communities.msn.com/Beastonabudget/homepage

Project1970 · 05-09-2002, 12:35 AM

Ah, okay. That pretty much settles it then, heh. Thanks!

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Project 1970 - soon to be seen at http://milhouse.treylis.org:81/

1-PU70 · 05-09-2002, 07:47 AM

I have heard the same thing to use a 4x4 case because there stronger. Also get the inspection cover for a 4x4 because its cast and ads more strenth.

snowman1 · 05-09-2002, 09:17 AM

the 4x4 will work but you have to change the rear shaft and the tail stock on the tranny. i have one and am getting ready to have it changed out to go in my 71 longbed. snowman

05-08-2002, 08:26 PM	#1
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	Quick 700R4 question Okay, I'm probably going to get my 700R4 from www.phoenixhardparts.com, namely because they're local and that's a good price for a tranny ($750 after core). The core charge is the same regardless of the transmission style...if you go to their site, they sell them by year (82-86 or 87-92; year choice is a no-brianer, the 87-up ones are stronger), displacement (2.8, 4.3, or 5.7...the choice is easy, lol...), and 2WD or 4WD (here's where the choice gets interesting). From what I hear, the 4WD cases are stronger. The core charges are all the same...so, assuming the 4WD 700R4 comes with a tailshaft (since I believe newer ones have the transfer case bolt to the tranny in place of the tailshaft?), would that be the one I want for my '70 GMC? It's a mild 350, so a stock tranny should be more than fine. ------------------ Project 1970 - soon to be seen at http://milhouse.treylis.org:81/ __________________ Project1970 - LS1 Swap Complete!

05-09-2002, 12:32 AM	#2
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	the 4x4 case is different. The transfer case does bolt directly to the transmission and the output shaft in the tranny drives the splined hub in the t/c. unless there is a conversion kit or adapter I've never heard of, the 4x4 tranny won't work in a 2wd truck. ------------------ Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s Angel girl: 67 Cutlass convertible 330, 3spd stick Greener: 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE no name yet: 72 442 under serious construction my site: http://communities.msn.com/Beastonabudget/homepage __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

05-09-2002, 12:35 AM	#3
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	Ah, okay. That pretty much settles it then, heh. Thanks! ------------------ Project 1970 - soon to be seen at http://milhouse.treylis.org:81/ __________________ Project1970 - LS1 Swap Complete!

05-09-2002, 07:47 AM	#4
1-PU70 Registered User Join Date: Apr 2000 Location: Bradenton, FL Posts: 1,036	I have heard the same thing to use a 4x4 case because there stronger. Also get the inspection cover for a 4x4 because its cast and ads more strenth. __________________ 1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters

05-09-2002, 09:17 AM	#5
snowman1 Registered User Join Date: May 2002 Location: illinois Posts: 11	the 4x4 will work but you have to change the rear shaft and the tail stock on the tranny. i have one and am getting ready to have it changed out to go in my 71 longbed. snowman



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