what automatic Tranny would replace a Manual tranny in an 1995 gmc sierra 1500sl

Asked by Dec 15, 2012 at 01:37 PM about the 1995 GMC Sierra 1500 C1500 SL Standard Cab SB

Question type: Maintenance & Repair

I have a 1995 gmc sierra 1500sl it had a 4-speed manual tranny I am wanting to convert over to an automatic tranny. The truck currently has a 350 5.7ltr. engine.

4 Answers

31,815

4L60E is the stock trans for that year. Not sure what exactly you would have to do with the electronics though. There may be an empty plug for the wiring harness and if that's the case I believe all you would need is the wiring harness and your PCM flashed for the trans. If there isn't a plug then you would need to run wires for it.

9,355

For '94 and '95 pre vortecs the stock tranny is the 4L60e. The PCM doesn't control the tranny, there is a separate tranmission control module under the hood. ?? on the wiring to add it in. (Needs some engine values, TPS for sure) The 700r4 would bolt in, essentially the same tranny only not electric shifting. Just need to rig up the torque converter lock/unlock if you want it (Not hard), saves attacking the PCM. The TV cable bracket and driveshaft should be at any wreckers. Can't think of any other parts. Or I used a TCI TCU from summit to run a 4L60e in my '92 GMC. 800 for the module from summit. Laptop tuneable? Can add a tow haul (boost tranny line pressure) adjust all shift points, firmness etc.

65

Way to much work. Sell that truck and buy the truck equipped the way you want (factory equipped) you will be happier in the long run and avoid loooots of hard work and headaches!

100

Bob must be a new car salesman.

Your Answer

Add photo
Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 58,736 nationwide Sierra 1500 listings starting at $1,599.

ZIP:

Search GMC Sierra 1500 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,610
#2 John Saffrahn
John Saffrahn
Reputation 3,230
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,890
View All

Related Models For Sale

Used Ford F-150
3,217 Great Deals out of 205,088 listings starting at $1,779
Used Dodge Ram 1500
529 Great Deals out of 13,262 listings starting at $1,800
Used GMC Yukon
563 Great Deals out of 16,645 listings starting at $2,500
Used Toyota Tacoma
712 Great Deals out of 32,123 listings starting at $2,000
Used Chevrolet Tahoe
852 Great Deals out of 28,370 listings starting at $1,700
Used Chevrolet Camaro
475 Great Deals out of 39,923 listings starting at $3,499
Used GMC Sierra 2500
189 listings starting at $7,500

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
14 Great Deals out of 30,724 listings starting at $23,800
2016 GMC Sierra 1500 For Sale
59 Great Deals out of 4,847 listings starting at $20,990
2015 GMC Sierra 1500 For Sale
172 Great Deals out of 4,392 listings starting at $16,489
2014 GMC Sierra 1500 For Sale
179 Great Deals out of 4,459 listings starting at $13,000
2013 GMC Sierra 1500 For Sale
113 Great Deals out of 2,537 listings starting at $9,988