Torque Specs

[Infantry87]

Anyone know the torque specs for converter to flexplate and flexplate to crankshaft. Every spec I’ve seen are for 5.9s and it seems as if nobody really has a set in stone answer for the 4th gen specs. It’s a 68rfe. Also are you guys using red loctite or blue? The grade 8 converter bolts I have say to use red loctite but just wondering if blue would get the job done. Any knowledge would be appreciated

[Snedge]

As far as torque goes, the 5.9 and 6.7 are the same. That's as listed in the Cummins manual. I use red loctite, but I would guess blue will do the job.

[Infantry87]

Does 100 and 35 sound about right? How hard is it getting off the red? The only problem I see is using a torch to heat up the bolts and end up warping something other than the bolts trying to get them off in the future when I get a built tranny.

Originally Posted by Snedge

As far as torque goes, the 5.9 and 6.7 are the same. That's as listed in the Cummins manual. I use red loctite, but I would guess blue will do the job.

[jasonc]

The bolts can be removed easily with the Red loctite. I use Red on anything that calls for the blue, it's not that much different.

I bet I pulled my conv bolts out 5 or 6 times when I was going thru trans problems on my drag truck, no big deal.

But conv bolts backing out down the road is a big deal and happens, go Red.

[Ugly Dodge]

Originally Posted by Infantry87

Does 100 and 35 sound about right? How hard is it getting off the red? The only problem I see is using a torch to heat up the bolts and end up warping something other than the bolts trying to get them off in the future when I get a built tranny.

I used pneumatic 1/2” impacts to remove torque converter bolts. Never used a torch.

Edit: Normally use 3/8 pneumatic.

Edit 2: I’ve never used blue. I use red on the small cars too.

[jasonc]

I just tighten the bolts as tight as I can get them with a 3/8 ratchet.