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#1
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what's a fair price to pay for a complete rebuild of a th400?
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#2
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what's a fair price to pay for a complete rebuild of a th400?
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#3
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Thats all dependant on whats getting done I guess. I paid 300 to get mine rebuilt but I could have spent more at a different place that would have added some upgrades and stuff for like 650.
GR-RRR!
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1970 GTO 458 CID .040 over 4 Bolt 428 Block, Forged Eagle 455 Crank, 295 CFM SD KRE D-Ports, SD Old Faithful HR Cam + Comp HR Lifters, PPR Maxx-lite rods, Racetec pistons, PRW 1.65 SS Rockers, 900CFM Holley HP TBI, Performer RPM, Hooker Super Comps, 3" X-Pipe into 2.5" mufflers/tailpipes, 2.75 1st TH400, Continental 13" Converter, 8.5" 3.08 Posi. Everything installed, fired up and tuning has begun! |
#4
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The price can vary greatly. What it typical with transmission rebuilding is that you get very little for your dollar spent. Most transmission shops will replace very little beyond rubber and paper in the trans and call it a "rebuilt" unit. Most of the steels and friction and bands will come from spare parts, nicely used and in decent shape. They will even insist that they replaced EVERYTHING! I'll list what it done here to a TH400 during correct preparation for high performance use. Full set of bushings, thrustwashers, steels, frictions, low sprag, int sprag (34 element and early drum if needed), seals, gaskets, shift kit, both bands (hd), governor gear, new modulator and a filter. Short apply pistons are added to both drums for maximum friction capacity. Just a ballpark figure for parts is about $450, more or less depending on the year of the transmission and the type of direct drum used. The later units are more expensive as they use the roller clutch in lieu of the sprag type and must be replaced. Planetaries are also closely inspected and replaced as needed. Final cost for a correctly prepared unit will be $550 to about $700. I'm constantly price shopped and have heard at least 1000 times that they can get them "rebuilt" elsewhere for $250 dollars (or less)......Cliff
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
The Following User Says Thank You to Cliff R For This Useful Post: | ||
#5
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thanks guys
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#6
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Best BOP TH400 High Performance Street/Strip trans filter
Quote:
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#7
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I've never had any issues drag racing with the stock type filters. A lot of racers like the 64-67 style.
https://www.ebay.com/itm/28123281540...Bk9SR9KClq_WYw There are also deep pan options to add a couple more quarts of fluid. Since I've never manages to uncover the stock filter and pan I never tried anything else. As far as the trans fluid getting hot and requiring cooling off periods, never had that happen either, but I don't use converters with "loose" characteristics on the street.....
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
The Following User Says Thank You to Cliff R For This Useful Post: | ||
#8
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Ahem. After a rebuuild of any quality, use the "auto store cheap" fabric filter for about 300 miles. THEN switch to the screen (brass or stainless) filter.
Could use another fabric filter but that 1st filter's life depends on the clutch and steel materials and newness. Some new frictions release a bunch of micro-bits that gunk-up/clog the fabric filter. Rebuilds: i still do em (north AL). Toughest cost for me is case clean and prep ($120 or more). + rebuild effort ($200) + parts costs (usually a smoking deal on shelf spares. The last rebuild ran into lack of a Front Pump core. Buyer willing to buy a $300 rebuilt front pump, but i said wait until we find another core, or we'll use my last minty 121 Pump. Well we found a core in a car, but he's been busy, no hurry but my bench is occupied. Maybe soon. As for my opinion: TH400 builds seem more practical to do that rebuilding Q-JETs. |
#9
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I'm going to do one TH400 build this year even though I'm pretty much retired from all of that. It's for a good friend and customer and will end up in his FAST Class early Firebird.
The last time I did a TH400 it was just shy of $1000 parts and labor. This included a 4L80E drum with a 34 element sprag, spiral lock ring, and steel apply piston with molded seals on it. I also replaced all the bushings, thrust washers, torrington bearings in addition to steels/frictions, both bands, sealing rings, seals, gaskets and small parts. I did notice that the price of parts has just about doubled post COVID, so that number will be considerably hiring on the next one.......
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
The Following User Says Thank You to Cliff R For This Useful Post: | ||
#10
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OMG, just noticed your 73 Ventura SOLD.
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#11
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Yep, it was spending WAY too much time sitting on my lift and not enough time being driven. I really don't miss it much, had lots of fun with the car over the years, but since retiring I've changed direction with a lot of things and was spending very little if any time with musclecar stuff.
These days I'm spending most of my time raising grand kids and getting to my bucket-list of projects I couldn't get anywhere near when I was working all the time. I kept the parts sales part of the business open and do that four days a week and couple of weekends a month I'll take it a cash & carry job for the Bourbon fund.......
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
The Following 2 Users Say Thank You to Cliff R For This Useful Post: | ||
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