Chevyss Posted May 20, 2010 Share Posted May 20, 2010 Just received my driveshaft loop yesterday. Looks good. NOW! What is the best way to install it. Bolt or weld?? If you weld, you need to pull carpet and insulation?? Quote Link to comment Share on other sites More sharing options...
USMCBLB125 Posted May 20, 2010 Share Posted May 20, 2010 Bolt on is much easier, and there's really no reason to not bolt it on. Unless you just really feel like welding it. Quote Link to comment Share on other sites More sharing options...
wallaby Posted May 20, 2010 Share Posted May 20, 2010 I can speak from experience that you don't want to weld underneath carpet and insulation...the tar stuff on the floorpans is a problem too. I had a muffler shop show me the wrong way to weld a hanger to the floorpan, and it was not a good feeling to see smoke rolling out of the interior as the lift slowly brought the car to ground level. LOL Quote Link to comment Share on other sites More sharing options...
CrazyDavey Posted May 20, 2010 Share Posted May 20, 2010 Royce there is a reinforcing runner on the floor pan just aft of the cross member. By the shape of the BMR unit it looks like it's designed to use that as a mounting point. My shop simply drilled holes where needed and welded nuts flush with the surface of the runner and bolted the loop in. No worries with getting the floor too hot or putting in any plates. It's not a structural piece, just there to catch something and they rarely do. Don't over think it, save your brain cells for another day..Davey Quote Link to comment Share on other sites More sharing options...
72MC Posted May 20, 2010 Share Posted May 20, 2010 I have the BMR piece and like Davey said, it mates up directly to the cross brace for the floor pan. I welded mine in and did not remove the carpet. I was concern, of course, but the transfer of heat from the floor bracing to the floor pan was not significant. I also took my time and am sure that had something to do with relatively small heat build up. To get it in the correct location before welding, I used 5/16 fender screws and attached to the floor brace. And Burton, call me crazy, but I actually really enjoy welding . It used to scare me before I actually started learning to do it years ago. Wait, you can't call me crazy, we already have one "Crazey Davey". - Dave Quote Link to comment Share on other sites More sharing options...
CrazyDavey Posted May 20, 2010 Share Posted May 20, 2010 ......I'll send you a Crazy Davey hat so you can be one too!!! Quote Link to comment Share on other sites More sharing options...
72MC Posted May 20, 2010 Share Posted May 20, 2010 What is the quality? Are they fitted? - Dave Quote Link to comment Share on other sites More sharing options...
Heckeng Posted May 20, 2010 Share Posted May 20, 2010 In my experience, every Dave is crazy! Quote Link to comment Share on other sites More sharing options...
72MC Posted May 20, 2010 Share Posted May 20, 2010 I have been known to ressemble that remark . Of course I have been called worse - Dave Quote Link to comment Share on other sites More sharing options...
CrazyDavey Posted May 20, 2010 Share Posted May 20, 2010 What is the quality? Are they fitted? - Dave Quality???? why nothing but the finest for anyone crazy!!! they're gonna be Flexfit..... and Scott............go order your heads.... Quote Link to comment Share on other sites More sharing options...
72MC Posted May 21, 2010 Share Posted May 21, 2010 Originally Posted By: 72MC What is the quality? Are they fitted? - Dave Quality???? why nothing but the finest for anyone crazy!!! they're gonna be Flexfit..... Ah, those flexfits are nice. - Dave Quote Link to comment Share on other sites More sharing options...
Chevyss Posted May 21, 2010 Author Share Posted May 21, 2010 Thanks for the info. I have to agree with the welding procedure. I will take the extra time and effort needed to lift up the carpet, and weld the loop. I'm just a firm beliver to do it right the first time and then you never have to do it again. I will do it all at once with the install of the new driveshaft. Thanks again Quote Link to comment Share on other sites More sharing options...
wallaby Posted May 21, 2010 Share Posted May 21, 2010 What is the quality? Are they fitted? - Dave As you can see, it's a one size fits most: Quote Link to comment Share on other sites More sharing options...
72MC Posted May 22, 2010 Share Posted May 22, 2010 ......I'll send you a Crazy Davey hat so you can be one too!!! Could just call me what my mom used too when I was young, "Loopey" - Dave Quote Link to comment Share on other sites More sharing options...
Arsin Posted May 22, 2010 Share Posted May 22, 2010 Originally Posted By: 72MC What is the quality? Are they fitted? - Dave As you can see, it's a one size fits most: Judging by the pic that would mean even I could do it right? Quote Link to comment Share on other sites More sharing options...
wallaby Posted May 22, 2010 Share Posted May 22, 2010 Judging by the pic that would mean even I could do it right? Except yours would have a chin strap. Quote Link to comment Share on other sites More sharing options...
kc8oye Posted May 22, 2010 Share Posted May 22, 2010 I used a universal loop.. and welded it to the front floor brace (Where the front of the front bench bolts down) didn't pull the carpet and had no issues. Remember, NHRA rules require it be within 6" of the front u-joint! having my rather long 700r4 put that floor brace in exactly the right spot for me my front u-joint is 6" further back then it was when I had a TH350.. here is one pic of it http://home.comcast.net/~kc8oye/transmission/driveshaft_loop.jpg forgive the ugly welds... they AREN'T mine! http://home.comcast.net/~kc8oye/transmission/driveshaftloopmount.jpg Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted May 22, 2010 Share Posted May 22, 2010 that loop looks kinda familiar Quote Link to comment Share on other sites More sharing options...
zmanabba Posted May 22, 2010 Share Posted May 22, 2010 I find as long as I take my medication I can pass for normal. David Quote Link to comment Share on other sites More sharing options...
72MC Posted May 23, 2010 Share Posted May 23, 2010 Here is a shot of my setup. BMR loop welded in(excuse the touch up paint on the welds, for now). Like Tim's 700r4, my 4L80 sits back far enough for the loop to attach to the floor brace so as to be within NHRA 6" inch rule. Quote Link to comment Share on other sites More sharing options...
Chevyss Posted May 23, 2010 Author Share Posted May 23, 2010 That looks nice Dave. Waiting on my driveshaft to come and then I'll install the loop. Quote Link to comment Share on other sites More sharing options...
kc8oye Posted May 25, 2010 Share Posted May 25, 2010 i actully modified my loop a little bit too. instead of both halves of the loop bolting in, which made it hang rather low.. I cut most of the ears off the top half of the loop, and welded the top and bottom halves together. then mounted the bottom half of the loop into the top half's holes.. which pushed it right up into the floor pan so it doesn't hang low under the car this way I can still unbolt the loop and take it out if I want to... i just have to drop the driveshaft as well Quote Link to comment Share on other sites More sharing options...
Andy's Auto Posted May 27, 2010 Share Posted May 27, 2010 Did Mythbusters not prove that a car cannot pole vault from a broken front joint? Get Wally Parks on the phone. Andy Quote Link to comment Share on other sites More sharing options...
CrazyDavey Posted May 27, 2010 Share Posted May 27, 2010 Did Mythbusters not prove that a car cannot pole vault from a broken front joint? Get Wally Parks on the phone. Andy Hello...this is Wally....where the hell am I???? Quote Link to comment Share on other sites More sharing options...
kc8oye Posted June 3, 2010 Share Posted June 3, 2010 I didn't see that one. but the problem isn't pole vaulting.. a broken drive shaft can come thru the floor like a propeller thru a piece of paper and injure the driver.. (Same reason we have SFI Flex plates)... our local track started requiring rear loops for cars that trap faster then a certain speed cuz a guy broke a rear ujoint, and the drive shaft removed the entire rear seat floor pan for him. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.