will this work - The 1947 - Present Chevrolet & GMC Truck Message Board Network

79chevy8708 · 07-21-2006, 12:53 AM

will a trans out of an 87 burb go in my 79 silverado need ur help thanks

Ziptar · 07-21-2006, 05:41 AM

You can make anything fit into anything with enough, time, knowledge, and money.
We need more details are they 2WD or 4WD? What tranny does each have? TH350, TH400, 700R4, Manual?? Give us as much detail as you can and we can help.

79chevy8708 · 07-21-2006, 12:07 PM

well i dont want to spend the money just want to get a trans in my truck need to kno if it will work

Prerunner1982 · 07-21-2006, 12:17 PM

what trans is in it now, what trans are you putting in it? My guess is the 87 has a 700r4 in it and the 79 has a th350... most likely not direct bolt in.. someone will chime in that can answer this, but again we need to know what trans is in it and what you are wanting to put in it to be for sure. May involve different crossmember or crossmember modification, perhaps a different driveshaft..etc...

75sierraclassic · 07-21-2006, 01:41 PM

A 700R-4 will not bolt in the place of a TH350, I am not sure about a 400 though.

SlapFish · 07-21-2006, 02:17 PM

All three have different mounting lengths. They'll all bolt up to the engine no problem. The crossmember location is different, though.

McFly · 07-21-2006, 02:21 PM

There are 2 different TH350 lengths, so it may fit. Previous post is correct, whatcha got, whatcha putting in? I have done many swaps, if it is a 700r4 coming out, I would recomend putting one back in, but a long shaft TH350 would be cheaper. In Wasington they are around $150 at a junk yard, and 700r4's are 300 to 400 bucks.

79BIG10 · 07-22-2006, 12:34 AM

Quote:

Originally Posted by McFly

There are 2 different TH350 lengths, so it may fit.

Actually there are three ( http://www.tciauto.com/tech_info/trans_dims.htm ) but I think it should have the 9". Measure to make sure. Also the torque converter is different. If you have a Th350 with a 9" tail it will fit with the cross member being moved back and redrilled for the new mounting holes in the frame. Also you will need to wire in a lock up torque converter ( http://73-87.com/7387garage/drivetrain/lockup.htm ), add a cooler to keep the tranny cooler since it runs hotter than a Th350 ( http://73-87.com/7387garage/drivetrain/tranny_hoses.htm ), and get the right linkage and set it up correctly ( http://73-87.com/7387garage/drivetrain/tvcable.htm ). The links will help you if you decide to get it but like others mentioned it's usually cheaper to get the Th350 rebuilt rather than try a 700r4 and swap it out and hope that it's still good.

79chevy8708 · 07-23-2006, 11:07 PM

mine has a 700r4 not sure what the burb has whats standerd for it

07-21-2006, 12:53 AM	#1
79chevy8708 Registered User Join Date: Jul 2006 Location: Belton,Tx Posts: 23	will this work will a trans out of an 87 burb go in my 79 silverado need ur help thanks

07-21-2006, 05:41 AM	#2
Ziptar Diesel Addict Join Date: Aug 2005 Location: Beyond The Sun. Posts: 144	Re: willl this work You can make anything fit into anything with enough, time, knowledge, and money. We need more details are they 2WD or 4WD? What tranny does each have? TH350, TH400, 700R4, Manual?? Give us as much detail as you can and we can help. __________________ 1979 C-10 Silverado w/ Olds 5.7L Diesel

07-21-2006, 12:07 PM	#3
79chevy8708 Registered User Join Date: Jul 2006 Location: Belton,Tx Posts: 23	Re: willl this work well i dont want to spend the money just want to get a trans in my truck need to kno if it will work

07-21-2006, 12:17 PM	#4
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,906	Re: willl this work what trans is in it now, what trans are you putting in it? My guess is the 87 has a 700r4 in it and the 79 has a th350... most likely not direct bolt in.. someone will chime in that can answer this, but again we need to know what trans is in it and what you are wanting to put in it to be for sure. May involve different crossmember or crossmember modification, perhaps a different driveshaft..etc... __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

07-21-2006, 01:41 PM	#5
75sierraclassic Registered User Join Date: Jun 2002 Location: Kansas City, MO Posts: 186	Re: willl this work A 700R-4 will not bolt in the place of a TH350, I am not sure about a 400 though.

07-21-2006, 02:17 PM	#6
SlapFish Real Men Wear Orange Join Date: Oct 2005 Location: NC Posts: 89	Re: willl this work All three have different mounting lengths. They'll all bolt up to the engine no problem. The crossmember location is different, though.

07-21-2006, 02:21 PM	#7
McFly Registered User Join Date: Jul 2006 Location: T-Town Posts: 4	Re: willl this work There are 2 different TH350 lengths, so it may fit. Previous post is correct, whatcha got, whatcha putting in? I have done many swaps, if it is a 700r4 coming out, I would recomend putting one back in, but a long shaft TH350 would be cheaper. In Wasington they are around $150 at a junk yard, and 700r4's are 300 to 400 bucks.

07-23-2006, 11:07 PM	#9
79chevy8708 Registered User Join Date: Jul 2006 Location: Belton,Tx Posts: 23	Re: will this work mine has a 700r4 not sure what the burb has whats standerd for it



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.