Installed NEW rear diff mount.. STILL CLUNKS! HELP! WTF? Urgent! car still on jacks
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Installed NEW rear diff mount.. STILL CLUNKS! HELP! WTF? Urgent! car still on jacks
I installed the new rear diff mount. the old one was worn out to where we could bend the rubber part with force taking the nuts/bolts off. Now it does drive a lil stiffer and when shifting it doesnt do it as much, but still when i throw weight onto th rear i hear a THUD, not as much now since the new diff mount is on.. What else? My brother says its the struts?
thanks guys!
thanks guys!
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5 hours of working on this and still thuding.. man am i ever so angry. Please everyone tell me what you think is going on.
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and yes it was the rear diff mount i replaced, and the old one was still in 1 peice, but i could bend the rubber when i was loosing the bolts on it.
im just sad now. because i haven't a clue what to do now. And i dont want to take it to a shop here in orlando 1) because i dont know any that have rotary techs, and 2) I dont want to waste what little cash I have.
im just sad now. because i haven't a clue what to do now. And i dont want to take it to a shop here in orlando 1) because i dont know any that have rotary techs, and 2) I dont want to waste what little cash I have.
#6
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Generally when you hear a thud in the rear of the car during hard shifting it is the diff front mount. Its located near were the rear drive shaft mount is (above it). The two rear round diff mounts usually don't go bad, but if you already replaced them then cool. If not, don't worry about those unless they look bad (these can be a bitch to replace). Another cause from clunking could possibly be the rear tranny mount. Sometimes if the car is really old, or if the car has a rear camber rod installed the rear subframe leaves little room for the diff to wiggle and will cause clunking as well. You can get an aftermarket diff snubber to fix it. And.. the last set to worry about and the least likely the sub frame mounts....
~Mike.............
~Mike.............
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Generally when you hear a thud in the rear of the car during hard shifting it is the diff front mount. Its located near were the rear drive shaft mount is (above it). The two rear round diff mounts usually don't go bad, but if you already replaced them then cool. If not, don't worry about those unless they look bad (these can be a bitch to replace). Another cause from clunking could possibly be the rear tranny mount. Sometimes if the car is really old, or if the car has a rear camber rod installed the rear subframe leaves little room for the diff to wiggle and will cause clunking as well. You can get an aftermarket diff snubber to fix it. And.. the last set to worry about and the least likely the sub frame mounts....
~Mike.............
~Mike.............
AND what i replace whats the REAR DIFFERINTIAL MOUNT the $99 from mazdatrix that has the 5 bolts.
could it be the struts?
how hard is it to replace tranny mount or that snubber thing?
Thanks for fast reply
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You have been a huge help , i couldnt of done the rear diff mount so fast and easy without your guidance with links of info. Can you help me via AIM with links again. Your a rex7 saint ;( lol
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Well everyone i'm kinda confused now... The trans mount? The sound is at the very end behind the seats, sounds like right in the middle of the back where the rear struts are in the middle of the back hatch floor, like its hitting under that and smacking it. This is my only daily driver ... only
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get underneath the car and try to wiggle the driveshaft, some play is normal but you will know its not normal. where in central fla you live? i used to live in clewiston.
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well anyways I hope i can with as little as money as possible already paid cash for the car.. fix this rear end thuding. 99% would of been just rear diff mount, replace it.. damn it still thuds. but atleast not nearly as much and it doesnt thud when boost kicks in, only when the rear is force with downshifting.. and well you can put it in like 4th going 30mph and throttle it in and out full/none/half throttle and it will knock nasty.
#22
Mac Attack
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I've changed the diff mount on my T2 and it clunked, partly because of the camber adjuster. I raised the front of the subframe enough to give little room for the pinion of the differential to move under sudden torques.
The solution: Install a pinion snubber.
https://www.rx7club.com/showthread.p...pinion+snubber
http://www.v8rx7forum.com/v8-rx7-tec...ion-again.html
http://www.v8rx7forum.com/v8-rx7-tec...n-snubber.html
After this, your car should have no problems with clunking. The v8 guys swear by this modification.
I haven't heard clunking in mine since the install, even under hard launches, bucking intentionally in 1st, etc.
The solution: Install a pinion snubber.
https://www.rx7club.com/showthread.p...pinion+snubber
http://www.v8rx7forum.com/v8-rx7-tec...ion-again.html
http://www.v8rx7forum.com/v8-rx7-tec...n-snubber.html
After this, your car should have no problems with clunking. The v8 guys swear by this modification.
I haven't heard clunking in mine since the install, even under hard launches, bucking intentionally in 1st, etc.
#25
Mac Attack
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Did you preload the pinion snubber when you installed it? Even with a factory diff mount, the pinion will still snap up to some degree under hard launching. People using the single rear camber adjuster rod will run into clunking as well, since the pinion is moved closer to the floorpan. Preload the pinion snubber and you should hear very little to no clunking.