Tranny Compatibility question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

iluvmy72 · 12-08-2010, 11:24 PM

OK...Automatic tranny in my 1993 blazer is bad. I have a working one from a 88 astro van that doesn't have too many miles on it. The 88 is not 4wd....the 93 is. but any wiring issues?

BarryB · 12-09-2010, 10:31 AM

No the transmission won't work without alot of work. reason. The transmission in the Astro would have to be taken apart in order to put in a shorter output shaft so your transfer case could bolt to the transmission. In my opinion I would find another transmission for your Blazer or have your old one rebuilt for simplicities sake.

raycow · 12-10-2010, 04:29 PM

I agree - sell the 2WD transmission and put the money toward buying a 4WD.

Ray

clinebarger · 12-11-2010, 11:13 PM

Quote:

Originally Posted by iluvmy72

OK...Automatic tranny in my 1993 blazer is bad. I have a working one from a 88 astro van that doesn't have too many miles on it. The 88 is not 4wd....the 93 is. but any wiring issues?

Your 93 Blazer has a 4L60E, An 88 whould have a 4L60(700R4).

93 & 94 4L60Es are NON-PWM transmissions 95 & up are PWM transmissions, You can run a 95 & up 4L60E in your truck with a simple wiring mod http://67-72chevytrucks.com/vboard/s...d.php?t=371339

12-08-2010, 11:24 PM	#1
iluvmy72 Registered User Join Date: Jan 2002 Location: Springville, UT, USA Posts: 1,010	Tranny Compatibility question OK...Automatic tranny in my 1993 blazer is bad. I have a working one from a 88 astro van that doesn't have too many miles on it. The 88 is not 4wd....the 93 is. but any wiring issues?

12-09-2010, 10:31 AM	#2
BarryB Senior Member Join Date: Jul 2006 Location: Blountville, Tn. Posts: 3,904	Re: Tranny Compatibility question No the transmission won't work without alot of work. reason. The transmission in the Astro would have to be taken apart in order to put in a shorter output shaft so your transfer case could bolt to the transmission. In my opinion I would find another transmission for your Blazer or have your old one rebuilt for simplicities sake. __________________ We could learn a lot from crayons... Some are sharp; some are pretty;and some are dull. Some have weird names; and all are different colours;but they all have to live in the same box. You may be only one person in the world, But you may also be the world to one person. * Some mistakes are too much fun to only make once. Two rules in life. 1. Never sweat the small stuff! 2. Everything is small stuff!

12-10-2010, 04:29 PM	#3
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: Tranny Compatibility question I agree - sell the 2WD transmission and put the money toward buying a 4WD. Ray __________________ Live more responsibly. Eat lower on the food chain. Eat vegetarians. Last edited by raycow; 12-10-2010 at 04:31 PM.



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