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[GMCnet] What has been some of the (on the road cost) of trans rebuilds? [message #341771] Mon, 18 March 2019 10:53 Go to next message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
Senior Member
With the GMC that I'm selling. It's at just over 100,000 miles. Shifts great. I changed the trans fluid. The fluid that I removed was very clean. With very little on the bottom of the pan. Do I trust that tans? Yes. BUT how long? ( I was just asked if it's good for 6 months/6,000 miles.) There are lots of trans out there that are way be on the 100, 000 miles, and still going strong. For me. It all comes down to YOUR COMFORT ZONE. Mine's short as you all know. I've been telling prospective buyers that it's fine. But all trans are perfect just before they quit. But I have a good trans shop here that's experienced with our GMC's. Will pull, rebuild, and install for about $2,000. They did Jay Hodges GMC last Fall. I think the $2,000 is a good price. Rather then the road/towing cost. I haven't greased the front wheel bearings. I'd do that for $350. I'd trust this GMC for years except for these two things. I'm asking $18,000 for this reconditioned GMC. So your thoughts? Bob Dunahugh

My ad without pictures below.


JUST COMPLETED restoration. Bought it to fix up for our daughters family. Then a medical issue came up for her. Pl. Sell.


This 73 Canyonland has just had the entire interior removed, refinished as needed, and reinstalled. Cabinets, and drawers have been reassembled with glue, and screws for durability. Interior of closet drawers have been sanded. And a coat of clear urethane applied for a clean surface. The closet had been lined with Cedar. New modern looking counter top. New plywood ceiling that has a mold, and mildew resistant coating applies to both top, and bottom sides. Real Walnut paneling installed from the door forward. A high end cloth headliner that is used in custom built Winnebago motorhomes has been installed. With 8 LED recessed lights. These lights are controlled by wall switches. Bed area, and hall lights can be turned on at front door. Then turned off from rear bed. All new under cabinet lights are LED's. Two Fantastic ceiling vents units in ceiling. One is new. TV coax cable, and USB ports installed at front, center, and rear of couch. Newest in electronic 110 volt to 12 volt converter installed. More 110 volt plugs added. New window treatments. $2,400 spent on all cushion/seats. New flooring. Built in micro wave cabinet.

These next items are also new. Roof A/C unit, Magic Chief 4 burner cook top, Domedic frig/freezer, Sur flow water pump, and a replacement Suburban furnace. These appliances where replaced at a cost of $2900. Outside paint is older. But nice.

Mechanicals. New 16" American Eagle rims. With Dunlop tires. 6 new KYB shocks. Both gas tanks flushed, and installed with new gas tank sending units. With new rubber gas line. New exhaust tail pipe. Complete 78 rear suspention, and brakes installed. All brake hoses replaced for safety. Main frame is in excellent condition. Cleaned, and painted. Engine oil pressure is good. Compression readings are excellent. At 150 to 155 psi. All belts are new.

New cam timing chain/sprockets, engine water pump, and front brake hoses/caliper and brake pads. Rear rubber brake hoses with new wheel cylinders, and shoes. Carburetor rebuilt. New ignition points, plug wires, and spark plugs. This GMC will be able to travel anywhere in the country.$18,000. I taught Industrial Arts auto/woodworking. Been into GMC's since 2003. I've rebuilt 3 GMC's before this one. One for a close friend. And 2 different ones for our personal use. Bob Dunahugh 319-521-4891 YENKO108@hot mail.com

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Re: [GMCnet] What has been some of the (on the road cost) of trans rebuilds? [message #341776 is a reply to message #341771] Mon, 18 March 2019 12:40 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
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Registered: January 2009
Location: Tucson, AZ.
Karma: 13
Senior Member

Based on my own recent experience, my guess is that the transmission overhaul would run somewhere between $1200.00 and $1500.00 (from an honest shop) and the R&R would run between $500.00 and $800.00.

You're right, my transmission was perfect until I suddenly lost third gear pulling out from a traffic circle north of Wickenburg, AZ. I religiously changed the fluid at 12,000 miles and was even running Mobil-1 in it.


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: [GMCnet] What has been some of the (on the road cost) of trans rebuilds? [message #341777 is a reply to message #341771] Mon, 18 March 2019 15:00 Go to previous messageGo to next message
lqqkatjon is currently offline  lqqkatjon   United States
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
Senior Member
Carl has it about right.

Bob's price is fair.


Problem is finding qualified shops, not only to deal with the tranny. But to do the R&R. I talk to owners often that are broke down and are denied by shops to do any work. And others end up paying big $$ to have poor work done.

I really hope rebuilding my transmission last year gives me some longetivity. But I know people who have had rebuilt trannys fail too.


Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/
Re: [GMCnet] What has been some of the (on the road cost) of trans rebuilds? [message #341781 is a reply to message #341771] Mon, 18 March 2019 17:00 Go to previous messageGo to next message
JohnL455 is currently offline  JohnL455   United States
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Registered: October 2006
Location: Woodstock, IL
Karma: 12
Senior Member
I guess anything can fail at any time. TH400/425 were designed to work behind 10.50/1 big blocks that put out more than our low comp version. They should give you warning when friction material is at the end of it's service life. The only TH trans failure I ever had was after a known rebuilter put a 200-4R back to "correct" and the front seal went as soon as I got on the tollway.

John Lebetski
Woodstock, IL
77 Eleganza II
Re: [GMCnet] What has been some of the (on the road cost) of trans rebuilds? [message #341783 is a reply to message #341781] Mon, 18 March 2019 17:55 Go to previous message
James Hupy is currently offline  James Hupy   United States
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Registered: May 2010
Karma: -62
Senior Member
My OEM transmission failed at about 100,000 miles. I had a Manny Tranny on
hand, and swapped it in. That was about 40,000 miles ago. Still works well.
I use Synthetic Valvoline ATF. My transmission shop in Salem charges about
$2000.00 for a 1 year guaranteed in-shop rebuild and swap. Last swap he did
for me was around $500.00. Prices will vary by location in the USA.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Mon, Mar 18, 2019, 3:41 PM John R. Lebetski via Gmclist <
gmclist@list.gmcnet.org> wrote:

> I guess anything can fail at any time. TH400/425 were designed to work
> behind 10.50/1 big blocks that put out more than our low comp version. They
> should give you warning when friction material is at the end of it's
> service life. The only TH trans failure I ever had was after a known
> rebuilter
> put a 200-4R back to "correct" and the front seal went as soon as I got on
> the tollway.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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