72zcar Posted March 17, 2003 Share Posted March 17, 2003 YES TH-350 I have been wondering who has removed the tranny mounts in the tunnel and who has not and what tranny was used. I removed mine on my 72 first thing so I am not sure it was necessary... I am pretty sure it was for my TH-350 but what about other transmissions SO.. everyone first state yes or no and what tranny then elaborate under that. I was thinking the other day it would be cool if I could put the old L-24 back in temporarily while rebuilding the chevy 350... at least I could still drive it if the 350 took a dump... and would be much simpler if the tranny mounts in the tunnel were still there... bob Quote Link to comment Share on other sites More sharing options...
Guest Your Car is Slow Posted March 17, 2003 Share Posted March 17, 2003 Ill be test fitting a TH400 in mine here in the next month or so....although I dunno what help that will be to you...Im pretty sure the TH400 is significantly larger than the 350. Quote Link to comment Share on other sites More sharing options...
pparaska Posted March 17, 2003 Share Posted March 17, 2003 YES - Tremec TR-3550 (same size as TKO, TKO II) in JTR position Quote Link to comment Share on other sites More sharing options...
Georgia Flash Posted March 17, 2003 Share Posted March 17, 2003 If I'm not mistaken the JTR manual says that the old tranny mounts have to be taken out period. No ifs ands or buts. Quote Link to comment Share on other sites More sharing options...
72zcar Posted March 17, 2003 Author Share Posted March 17, 2003 Georgia Flash 75V8 there are if and butts...read the jtr manual on page 7-10...it states "The two brackets for the stock Datsun transmission crossmember need to be removed to install an automatic transmission or Corvette 4+3 manual transmission" I thought they had to come out "period" too...until I was reading the "bible" again for the third or forth time and began to wonder if it is always necessary... Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted March 17, 2003 Share Posted March 17, 2003 Yes T-56 and yes 700r4 Quote Link to comment Share on other sites More sharing options...
dsommer Posted March 17, 2003 Share Posted March 17, 2003 YES!!! World Class T-5 ds BTW it is a pain in the rear, do it before the weather warms up or you'll be sweating you arse off!!! Air hammer, cold chisle, vise grips, 2 hours or so and some COLD BEER. So far this was the toughest part of the conversion. Go figure. Quote Link to comment Share on other sites More sharing options...
Guest Your Car is Slow Posted March 17, 2003 Share Posted March 17, 2003 Air hammer, cold chisle, vise grips, 2 hours or so and some COLD BEER. So far this was the toughest part of the conversion. Go figure WTF holds it on? Sounds like an excuse to buy a plasma cutter if Ive ever heard one Quote Link to comment Share on other sites More sharing options...
72zcar Posted March 17, 2003 Author Share Posted March 17, 2003 Check this out.. its from IanZ's album. Notice the mounts in the tunnel are still there. this is a T-5 http://www.netsnapshot.com/pcw/buildalbum-cgi?ACCOUNT=4581&KEY=0 Click on the one named "MSA Transmission Mount " to enlarge the pic and you can see the original datsun tranny mounts in the tunnel with a T-5 installed... No cutting needed apparently with a T-5 Quote Link to comment Share on other sites More sharing options...
QWKDTSN Posted March 17, 2003 Share Posted March 17, 2003 I did NOT remove them for my T5. The JTR manual states that there should be at least 1/2" on either side and this was true for me. There's plenty of room in there for the T5. I did beat the cr*p out of the tunnel to fit the new crossmember though Quote Link to comment Share on other sites More sharing options...
Guest 73TPIZ Posted March 17, 2003 Share Posted March 17, 2003 700R4 i drilled out the spot welds and moved the whole unit back ~2in. i made new ears that hung down ~2in more than orig on each side and then sectioned my crossmember ~1in to align the holes back up. sounds like a lot of work but wasn't that bad and it looks factory from underneath. very little massaging w/ the BFH (big f'n hammer). my motor mounts are homemade so can't say how would work w/ kits. Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted March 17, 2003 Share Posted March 17, 2003 I removed them - fat ass T-56. No pounding of tunnel - I simply pried it away from the reverse light pigtail with a crowbar gently, no banging, no grinding. I use an air chisel on the mounts, took maybe 45mins MAX. I used the JTR rear mount - it was too wide. Did a little measuring and then had it sectionedrewelded. It was still a tight fit so I pressed it into the tunnel with a floor jack - the floor deformed SLIGHTLY. All in all I didn't have to hack up my tunnel badly and simple removed the mounts with the chisel.... Quote Link to comment Share on other sites More sharing options...
Miles Posted March 18, 2003 Share Posted March 18, 2003 I put the SBC and T5 in IanZ 240Z. You don't have to remove the trans mounts as there is ample room. But DO remember to dimple the floor board for the throw out arm clearance. Miles Quote Link to comment Share on other sites More sharing options...
Wagz Posted March 18, 2003 Share Posted March 18, 2003 Yes - T56 ('71 240) Drilled the spot welds using a spot-weld bit. 30 minutes tops. Yes - TH350 ('76 280). Done by the previous owner. Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted March 18, 2003 Share Posted March 18, 2003 Yes. Took them out. Tilted (f-body) T5, JTR. Looks like I never needed to. But hey, it's a manly way of saying, "I'm never goin' back". FYI: Sawzall, 10 minutes. Ringing in the ears, hour and a half. Quote Link to comment Share on other sites More sharing options...
Guest Mr. Big Business Posted March 18, 2003 Share Posted March 18, 2003 T-56, heck yeah! I used an impact chisel, and it took 5 minutes, tops. I would say less than that, actually. The JTR transmission mount is VERY wide, and I had to liberally apply the BFH to my floor, and actually ended up splitting the metal a bit. If I wasn't so impatient, and/or had the resources to do it myself, I would have sectioned and narrowed it a bit. Henry Quote Link to comment Share on other sites More sharing options...
Zfreak Posted March 18, 2003 Share Posted March 18, 2003 Yes 700R I used a air chisel and a grinder. I used the JTR Bracket with the recommended tail housing. I cut holes the the floor to make room for the exhaust humps that the bracket has. This allows more room for the exhaust to bend around the the trans pan. Quote Link to comment Share on other sites More sharing options...
72zcar Posted March 20, 2003 Author Share Posted March 20, 2003 ok, so far it looks like 9 or 10 yes and 2 no. anybody else Quote Link to comment Share on other sites More sharing options...
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