Thanks for the help and hints guys Iwill probably just rebuild the Getrag for now. I didn't realize it would handle 600Hp although I am not even close. Maybe some day I can do the 4500 or 5600 swap. thanks again

 

The grtrag is only rated for 400 pounds of torque, even the weakest 5.9's make that... The nv4500 is a much better design that will take a lot more abuse and that's why when my getrag went out i put a nv4500 back in.

Robert

 

Nobody is putting 600hp through a Getrag past the first clutch dump or the first 10k haul up a hill I don't think....

 

I won't argue that the 4500 is a good trans, but I think even the average BOMBer with stock injectors and pump tweeks is putting more than 400ft/lbs to the crank/input shaft, and I just haven't read enough threads on exploded getrags to be sold on the idea that they can only hold 400ft/lbs. Also, remember a lot of us first genners are on a budget, so we've gotta work with what we've got I've buried the skinny pedal countless time at 1200rpm in 2nd gear to the tune of about 22psi before I shift and I built mine with chineese bearings on the ground for about 350 bucks. For the $$, I'll keep the 'rag and spend the coin on twins...then I'll break the 'rag

 

Or not. I think they are pretty stout, I worry more about u-joints and axles than the trans on my truck.

 

I forgot you are running the RAG Dave. I'll shut up now.

 

Did you not read the beginning of this thread? Stomp is at 600hp or more with a getrag, don't know how long but he hasn't said he's had problems.

I've hauled way more than 10k up here in the hills and its still fine.

 

I've seen a few really nice pinto station wagons driving around still, guess anything's possible!
Don't get mad, just kidding!
I stand corrected.

 

I don't know, i think the Getrag get's a worse name than it really is. Here at our dealership, we see a lot of NV4500 problems and even quite a few NV5600 problems. The "rag" in my 92' is nearing 300k and has never been opened. The truck is stock, and the rag has been overfilled by a quart and a half, but we work it harder than most, had 26,000lbs behind it last saturday. Pulled it 60 miles through some pretty big hills like that, and this truck does that kind of stuff every week. And you know, the thing doesn't growl much at all, and it still shifts good, doesn't grind, goes in all the gears. I thiink there are some good rebuild parts worth the money out there thses days for the rag. When this one eventually does die, I gonna overhaul it, overfill it, and keep on truckin. The NV4500 is a good tranny, but I have seen too many problems with them even on my own trucks to justify doing a swap. A properly built and treated rag will last a long time, I.M.O.

 

love those discustion,...give me hope for my getrag

 

In defense of the NV4500 guys, I will say that the NV4500 swap eliminates the huge gear spread between 2nd and 3rd. I don't know what they were thinking when they put that huge gap in there, they should've made 2nd about 2.5:1 instead of 3.07:1.

 

I second that. Before I bombed my truck I had a very har time pulling anything because I would have to wrap it to the defuel point in 2nd and then going to third would bog because it was under the spool up RPM. If I had to pull away from a light going up hill I was toast! The 3,200GSK largely fixed that, but I still hated it.

 

I haven't notist that with 2nt to 3d but my 4:10 gears i'm only going a bout 20 when i shift to 3d......and i havn't pull any real heavy loads eather

 

I don't know, I pull heavier than most, and the 2-3 shift never bothered me much, the 3-4 is pretty far apart though. My truck is stock with the 3.54 gears.

 

My truck was a real dog at this altitude in stock form with the 18.5cm housing and stock governor. Even with the BD injectors I couldn't build boost until right before it started to defuel, so the raggy tortured the crud out of me! I was almost glad when the last one spit the countershaft bearing out (except for the $$$$).