Thread each into the torque converter until they are all finger tight. Shop bdpower heavy duty flex plate 1041260 for the 20012018 gm 6. Mine cracked all over the place on me, didnt know it until i was doin some instals though and when i removed the starter i seen. Xdp carries all the parts and accessories you need for the best diesel. The truck had a new engine block installed at 17,000 miles. Similar in function to a flywheel in manual transmission engines and called a flexplate due to its expansion, or flexing, during the. Give a guess in the comments section and stay tuned for pt. Socal duramax billet flex plate06 lly, lbz, lmm socal. Because perfect alignment of the engine and transmission are not possible, the flexplate can absorb the minute misalignment. I also found it was seeping a little oil so i figured i would reseal it while i had everything apart. This flex plate upgrade is perfect for towing, street, racing and sledpulling. Arp flex plate bolts for 20012010 gm duramax learn more. A vital part of an automobile engine equipped with automatic transmission, a flexplate consists of a piece of thick sheet metal that bolts to the crankshaft and torque converter.
Or torque convertor nose that engages the pump maybe cracked or broke. The truck has a lift kit and dealer told me not read more. Jul 11, 2012 i took in my 2005 chevrolet duramax diesel to dealer with cracked fly wheel and flex plate. This is a must with the high torque in conjunction with a better designed torque converter that can transfer the torque with no. I listens to pat and instead of putting 8 bolts back in the flex plate flywheel i put 4 in it star shape. Aug 30, 2014 every tranny guys knows of the one flex plate to tc mount hole thats not elongated and allows for the centering of the remaining mount holes so you turn the crank once to install and tighten the bolts instead of twice i never had a cracked flexplate to fix, i may suggest an aftermarket plate if avail to handle the stress, idk what else to say. With increased torque from the engine and no slip out of the converter it can crack andor rip the center out of a stock flex plate. Bd duramax flexplate 2500 3500 automatic transmissions 2001 2012. I went to the dealer today to buy new fluids that i need for the transmission and the guy at the part. The sun coast a1bfp billet flex plate for your 20012005 gm 6. Socal diesels billet flexplates are lighter and stronger than stock they meet the new sfi 29. The rear cover came loose pretty violently and ended up ruining the dowels in the upper pan anyways. Start the engine, put in drive, foot on the brake, give it some rpm, does that quiet the noise loose bolts and cracked flex will usually be less noise doing that.
Here at driving line, weve spent inordinate amounts of time spelling out just how capable the duramax is in the performance sense, but weve never poured over the finer detailsthe nuts and boltsthat make gms 6. Featuring twice the material of the stock flexplate, these forged billet units are precisionbalanced and sfiapproved for use in racesanctioning bodies. Recommended for replacement when servicing flywheel. Bd billet steel flex plate 0118 gm duramax diesel power products. Does anybody have a link to the sfi vortec style flexplate.
Yesterday the flex plate on my 2000 toyota 4runner w 155k miles was replaced. This replaces the factory flywheel flex plate with a improved billet steel onepiece design and eliminates the heavy cast iron and. I went to the dealer today to buy new fluids that i need for the transmission and the guy at. A couple thoughts about the clunking heavy noise in the bell housing area. Duramax diesels forum duramax diesel technical duramax hard parts lly lly. At first i thought it was comin from the top but when i get under it its alot louder sounds like its comin from the oil pan.
A cracked flex plate is almost always a sign of other problems. I hadnt removed the inspection plate yet to see if i had a broken tq converter bolt or a cracked flex plate. I took in my 2005 chevrolet duramax diesel to dealer with cracked fly wheel and flex plate. Flywheel may not be loose but cracked especially between the bolt holes to the crank. I am running this on my truck and wouldnt have it any other way. Unlike other manufacturers, bd is reusing the stock flywheel assembly to reduce costs and unnecessary part changes. No problems as of yet and the tranny shifts harder not then before. The truck has a lift kit and dealer told me not covered under gm warranty, etc. Our flywheel bolts provide a convenient repair solution, ensuring you have the boltwith the correct head size, length, and thread pitch. The bd flexplate is a direct, boltin replacement for the stock converter and is also compatible with most aftermarket torque converters. The flexplate was broken in a complete circle just outside the crank bolts.
Zero balance flexplates are required for use on internally balanced crankshafts like the callies ultra billet, callies magnum billet, and wagler billet crankshafts. Remove the inspection cover from the driver side of the bell housing see if the converter is loose. The unwary wont notice especially since it is so hard to see up in there. What a cracked flexplate looks like on a 2001 chevy silverado 2500hd 4l80e transmission. Be sure to install alignment pin between new flexplate and crankshaft hub to insure proper alignment. Alot of the time that those flexplates crack is because the converter bolts or the flex plate to crank bolts work loose. It cracked and started making noise around 80,000 miles. Unless otherwise marked, all engines and parts are for competition use only. Cracked flywheel housing surprise archive duramax diesels. Duramax lb7llylbzlmm stock rebuild package creatures. Injector knock or cracked flexplate diagnosis w 2009 chevrolet duramax lmm dually. I also ended up dropping the upper oil pan as well. I have a 05 crew cab and a few weeks ago i noticed a ticking coming from the bell housing, i asked a friend who drive a duramax and he said to pull the starter and check for cracks in the flex plate.
Designed to handle up to 1500 ftlbs of torque, the new duramax black oxide coated flexplate is corrosion resistent to prevent hydrogen embrittlement, billet machined and precision balanced for ultimate strength. This replaces the factory flywheel flex plate with a improved billet steel onepiece design and eliminates the heavy cast iron and the weak stamped steel flex plate. Jan 19, 2011 i have a cracked flex plate im told i might need a flex plate, torque converter and possibly a front pump bearing. Gm performance view topic broke my fourth flexplate. Fix for all lb7 and newer trucks with cracked pistons. The symptom was a ticking sound under certain conditions. Discussion duramax 20012004 lb7 blewup my flexplate.
The power and torque that modified duramax engines deliver can crack or even shatter the stock flexplate. Chevrolet silverado 2500 hd flex plate flywheel plate. The bd flex plate is designed to handle up to 1500 ftlbs of torque and is billet machined and precision balanced for ultimate strength. Black oxide coated to resist corrosion and prevents hydrogen embrittlement that can cause cracking, these units will fit any oem or aftermarket torque converter. There are no side bolts with this kit only 36 head bolts or replace these by adding on the arp headstud kit above. Buy performance transmission flex plates at alligator performance. With increased torque from the engine, it can crack andor rip the center out of a stock flex plate. Remove the torque converter cover and inspect with a light. Dont forget your duramax arp flexplate bolts high performance series to go along with your flex plate. Furthermore, if not properly diagnosed it will occur again and often damage to the transmission may follow. Buy arp 2302901 flexplate bolt kit for gm duramax 6. Bds duramax black flexplate is designed to reliably handle up to 1,500 lbft of. Dont take any chances on running a stock flex plate that might be cracked from the high stress of your high. Flywheel mounting bolt 74070 dorman products 74070.
Install flywheel washer on the bd flexplate ensure the. Weve got tough yet affordable flexplates for stock and mildly modified street vehicles. Bd diesel performance flexplate for silverado sierra 2500. You will find that the lip around the outside of the flex plate bottoms against the outside rim of the torque converter. The one i heard was on my brothers 89 34 ton ext cab with a 350. Featuring twice the material of the stock flex plate, these units are billet machined, precision balanced.
Duramax diesels forum duramax diesel technical mike ls trans talk cracked flywheel housing surprise. And we also have heavyduty and sfiapproved flexplates for highhorsepower, highrpm race applications. Ats diesel billet flexplate for gm duramax 20012004 6. Socal duramax billet flex plate danville performance. Diesel power products carries the bdpower black flexplate for 07. Fits 20012016 duramax with internally balanced crankshaft. There are tough flexplatesand there are chuck norriscaliber flexplates.
I dont know what happened 1st but all the bolts were broken, the flex plate was cracked and about an 18 of it was completely sepearated. Apply a small amount of threadlocker to each torque converter bolt and start all bolts by hand. I have had one do that before, and it sounds exactly like what you are describing. What are the likely causes of failure so maybe i wont do it again. I bought this truck new and custom ordered from the factory and took delivery on october 9, 2003. Im pretty damn sure i broke my fourth flexplate on the truck. I glanced over the truck and couldnt figure it out but the. If the source of the noise is detected from the bell housing, remove the transmission to inspect the flywheel for any cracks. Im thinking it is a specific diameter or teeth selection. Bds duramax black flexplate is designed to reliably handle up to 1,500 lbft of torque. Bd diesels black flexplates are designed to reliably handle 1,500 ft. Free shipping on many items browse your favorite brands affordable.
Injector knock or cracked flexplate diagnosis series featuring my 2009 chevrolet duramax lmm dually. To me it sounded like a mad woodpecker somewhere under the truck. I had posted a similar question when i first got my vehicle around sep. This time around, i know they make an sfi approved flexplate that will handle anything, and im putting the sucker in. Well i found one about 3 inches long coming off of a bolt hole that connects it to the tq converter. I just thought id post a short video of what a cracked flexplate on a 6. We specialize in a widevariety of highquality car parts and accessories for your car, truck or suv. Using the oval hole in flex plate as a starting point may ease torque converter bolt installation figure 1. Will not work with factory or nonbillet converters. Suncoast duramax billet flex plate 0610 lbz, lmm a1bfp. The sun coast 64bfp billet flex plate for your 20082010 ford 6.
Put a new flex plate in, it must have been a newer style but still worked. The background is made of mirror polished stainless steel which is 1mm thick and weighs 1 lb. The bd flexplate is proven to handle over 2000 lbft of torque, or up to 3500 lbft with the addition of the bd slip eliminator shim kit. A sfi certified flywheel flex plate is re quired on drag. This is a must with the high torque in conjunction with a better designed torque. A mirror andor opaque color laser cut acrylic design is permanently attached to the stainless steel surface to create a threedimensional finish. Balancing is not needed, but its nice to do on the lb7lly these are drop in replacement on this motor. I noticed a low deep noise i couldnt recognize like it was from the exhaust. The same things that cause the flexplate to crack can also cause transmission problems. Dont take any chances on running a stock flex plate that might be cracked from the high stress of your high horsepower truck. Designed to handle up to 1500 ftlbs of torque, the new duramax black oxide coated flexplate is corrosio. I had the transmission rebuilt thinking it was the flywheel or torque convertor and wasnt the problem but transmission was in. I would replace both sets of bolts regardless, theyre too inexpensive not to, closely inspect the converter and locktite the new bolts.
Chevrolet silverado 2500 hd flex plate flywheel plate atp. I have a loud knocking noise coming from the engine. I took in my 2005 chevrolet duramax diesel to dealer with. Jun 21, 2007 i took in my 2005 chevrolet duramax diesel to dealer with cracked fly wheel and flex plate. Give a guess in the comments section and stay tuned. Designed to handle up to 1500 ftlbs of torque, the new duramax black oxide coated flexplate is corrosion resistant to prevent hydrogen embrittlement, billet machined and precision balanced for ultimate strength. Suncoast zero balance flexplate internally balanced. When it develops a crack, it cannot function as intended and one consequence involves a loss of power at high speeds. This leaves nearly a 14 inch gap between the mounting holes in the converter and the face of the flex plate. Chevrolet silverado 1500 questions loud knocking noise 5. Removed the trans last night to install my new transmission and found the. When additional horsepower and torque are added to your duramax, you run the risk of cracking the stock flexplate. Search our online flex plate catalog and find the lowest priced discount auto parts on the web.
Designed to handle up to 1500ftlbs of torque, the new duramax black oxide coated flexplate is corrosion resistant to prevent hydrogen embrittlement, billet machined and precision balanced for ultimate strength. At high speeds, the flexplate like most engine parts endures a considerable amount of strain and stress. Archive cracked flywheel housing surprise mike ls trans talk. Installation should occur on a vehicle properly secured to prevent rolling.
I went to the shop and looked it over and never seen anything like it. We offer high quality new, oem, aftermarket and remanufactured chevrolet silverado 2500 hd flex plate parts. To diagnose this concern, use chassis ears or a stethoscope to determine if the noise is coming from the bell housing. Duramax 1116 lml billet flex plate socal diesel inc.