Would a 99 tranny fit in my 78 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*198ChevyGuy* · 01-24-2011, 11:04 AM

I have a 78 c10 and the 700r4 crappped on me last night. would the trans out of a 99 swap over or would i have to take the nasty fuel injection motor with it?

ont_guy_38 · 01-24-2011, 11:26 AM

It will bolt up to the engine but thats about it. You would need some kind of controller for it to shift and probably modify everything else from the crossmember to the driveshaft

maynardtruckin · 01-24-2011, 01:06 PM

you just have to move the cross member back and depending weather you have a short shaft or a long shaft in your 78 depends weather you will have to shorten your drive shaft any. the 99 trans will bolt in and work just fine but you will need a controler and to convert the speedometer to mecanical drive.

Big Port Jimmy 6 · 01-24-2011, 02:53 PM

The ls trans will not fit the old style block without some spacers or adapters. the crank flange dimension to the bock face is different. Jay

joe231 · 01-24-2011, 03:35 PM

Does the 99 have a 4.3L V-6?
Posted via Mobile Device

**bigunde** · 01-24-2011, 04:07 PM

http://www.hotrodders.com/forum/bell...n1-104377.html

Big Port Jimmy 6 · 01-24-2011, 11:33 PM

Quote:

Originally Posted by bigunde

http://www.hotrodders.com/forum/bell...n1-104377.html

I could be wrong in my above post, it been that kinda day. Jay

andrewmp6 · 01-25-2011, 06:10 AM

I would just pull your 700r4 and have it rebuilt would be the easiest way.

BigBlocksRule · 01-25-2011, 09:20 AM

Quote:

Originally Posted by andrewmp6

I would just pull your 700r4 and have it rebuilt would be the easiest way.

X2 for sure!

thesickc10 · 01-25-2011, 11:50 AM

http://www.bowtieoverdrives.com/cata...SUBCAT&CATID=B pricing isnt too bad on these

*198ChevyGuy* · 01-26-2011, 06:30 AM

Quote:

Originally Posted by andrewmp6

I would just pull your 700r4 and have it rebuilt would be the easiest way.

I recieved a 92 700r4 yesterday and it came with a b&m Shift improver kit minus the valve body, I tore the bottom of mine out and installed the kit, now im just waiting on someone to help me carry it from my laundry room to the truck lol. Sucks not knowing anyone in Tulsa.

BigBlocksRule · 01-26-2011, 08:12 AM

^ double check your date, that should be a '92, GM went to the 4L60E in '93. You should have one of the best 700's, though.
Good luck, hope it goes well.

01-24-2011, 11:04 AM	#1
198ChevyGuy Account Suspended Join Date: Jan 2011 Location: Midwest City, Oklahoma Posts: 85	Would a 99 tranny fit in my 78 I have a 78 c10 and the 700r4 crappped on me last night. would the trans out of a 99 swap over or would i have to take the nasty fuel injection motor with it?

01-24-2011, 11:26 AM	#2
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	Re: Would a 99 tranny fit in my 78 It will bolt up to the engine but thats about it. You would need some kind of controller for it to shift and probably modify everything else from the crossmember to the driveshaft

01-24-2011, 01:06 PM	#3
maynardtruckin Registered User Join Date: Jan 2011 Location: Falcon \ Colorado Posts: 193	Re: Would a 99 tranny fit in my 78 you just have to move the cross member back and depending weather you have a short shaft or a long shaft in your 78 depends weather you will have to shorten your drive shaft any. the 99 trans will bolt in and work just fine but you will need a controler and to convert the speedometer to mecanical drive. __________________ Chris 67 c10 swb build in progress 70 c10 lwb driver pending parts for drastic overhaul 70 c20 lwb parts truck for above mentioned drastic overhaul 71 k20 lwb building for off road use and towing

01-24-2011, 02:53 PM	#4
Big Port Jimmy 6 Addicted to Rust Join Date: Dec 2009 Location: Abbeville SC Posts: 1,030	Re: Would a 99 tranny fit in my 78 The ls trans will not fit the old style block without some spacers or adapters. the crank flange dimension to the bock face is different. Jay __________________ Current trucks: (48 GMC100 320 inliner) Gone (48 Suburban in pieces) Sold 87 GMC CCSB 5.3 4l60E Daily Driver ECTA National record holder XO/PP We never really grow up, we just learn how to act in public.

01-24-2011, 03:35 PM	#5
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: Would a 99 tranny fit in my 78 Does the 99 have a 4.3L V-6? Posted via Mobile Device __________________ *CHEVY ONLY*

01-24-2011, 04:07 PM	#6
bigunde Rusty Rockerfeller Join Date: May 2003 Location: South Georgia Posts: 1,631	Re: Would a 99 tranny fit in my 78 http://www.hotrodders.com/forum/bell...n1-104377.html

01-25-2011, 06:10 AM	#8
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: Would a 99 tranny fit in my 78 I would just pull your 700r4 and have it rebuilt would be the easiest way.

01-25-2011, 11:50 AM	#10
thesickc10 Registered User Join Date: Sep 2010 Location: New Hope, PA Posts: 279	Re: Would a 99 tranny fit in my 78 http://www.bowtieoverdrives.com/cata...SUBCAT&CATID=B pricing isnt too bad on these __________________ 1985 c10 355 th350 (working on 4 speed conversion to super t10) 1979 camaro 358 super t10 2003 f250 superchip slp exhaust

01-26-2011, 08:12 AM	#12
BigBlocksRule Registered User Join Date: Jun 2008 Location: Lubbock, TX Posts: 2,047	Re: Would a 99 tranny fit in my 78 ^ double check your date, that should be a '92, GM went to the 4L60E in '93. You should have one of the best 700's, though. Good luck, hope it goes well.



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