IROCZ1989

iTrader: (1)

So I'm at the point I need a driveshaft. Got my mind set on a 3 inch steel or chrome moly with 1350 u joints. God or bad experiences with Dennys, PST, Inland empire ,etc and any others I missed or dont know about. Want to spend my money at the right place. Thanks

IROCZman15

iTrader: (25)

I just bought a 3" driveshaft from Dennys a month ago. . ChromeMoly yoke. super high speed balanced. nitrous ready. 1350 series yoke. I was told it can handle 1,500 horsepower. Talked with the tech guy (Dan I think?) on the phone a few times and went over my measurements several times as well. Was at my door in about 18 days. Great customer service as well.

Photos and info can be seen at my thread here:
https://www.thirdgen.org/forums/tran...ice-input.html

//<86TA>\\

iTrader: (14)

I have one from strange, 3" .083 chromoly 1350 joints forged yoke yadda yadda yadda. Good piece, will hold just about anything you throw at it.

//<86TA>\\

iTrader: (14)

Also used fort Wayne clutch and driveline to make a couple heavy duty custom long travel shafts for my j20. Tech support was very good any they know their stuff. Great looking pieces too.

https://fortwayneclutch.com

bensbaby

I bought a used 2002 trans am 5.7 aluminum driveshaft 3 years ago to replace a bent stock steel one we paid 650 for at the dealership to get it rebuilt and ballanced and they didn't fix it
It took a whole new used drive shaft and then that fixed it
That's it for gm tech's
I do everything myself
I don't trust anyone
Esp not a dealership
A used alum shaft for 150 cdn 140k
Zero issues 3 years later

mikeceli

iTrader: (2)

I brought the two-piece, w/ universal joint, driveshaft from my 1988 Lincoln Mark VII to "Drive Line Service Of Santa Rosa", Ca (707-528-7886), requesting they replace the joints, straighten and balance, as needed. They did this at a reasonable price.

STREETDEMON

PST customer in the past, quality shaft and quick turnaround. Give them a call.

IROCZ1989

iTrader: (1)

How long ago did you use them? They are near the top of my list. Dennys replied to two of my emails and sent a third and havent heard anything back. Driveshaft shop didnt respond at all. In my opinion Mark William's seems to make some real high quality stuff. But wow they are expensive. Looked at Qa1, they only seem to make CF driveshafts. Heres where I stand. Dont have much room under the car. 3.5 is probably max diameter if that. Steel will do it in 3. Aluminum is bigger but the Mark Williams 7075 units bring that down. Carbon fiber is an option. The Pst CF is 3.75, little on the big side. QA1 is 3.25, but $$$$. Pst seems to offer the best CF deal at 699 and optional lifetime replacement warrenty. To many options.

IROCZman15

iTrader: (25)

what is your engine/trans/rear setup anyways? what kind of power you making? 3.75" diameter seems massive!

IROCZ1989

iTrader: (1)

421 cubic inch small block. Fully built 4l60e 3500 stall, fab 9 inch rear from midwest industries. A crank hp guess 550-600. Motors built for nitrous 200 shot. Weight with me in it 3500 guess.

STREETDEMON

It's been a few years. Did you call? I plan to buy a heavy wall 3" aluminum from them this year.

IROCZ1989

iTrader: (1)

I didn't call. Just was sending out inquiries with what I needed and to see who responded back. Only Dennys did as of right now.3 inch is about the max I want to go anyways.

IROCZman15

iTrader: (25)

nice. very nice. our cars will be kind of similar come this time next year. In november 2019 my engine is coming out for a 406 (dart shp block, dart heads, holley sniper efi) making 525 crank hp. it will also be built for a 200-250 shot of nitrous. I have a 700r4 trans from probuilt automatics (their top level strongest one) and the dennys 3" nitrous-ready driveshaft. brand new moser 12 bolt. no roll bar setup now, but it will get one in november 2019 right before the current engine comes out. car weighs 3300 now without me, so plus a 6 point roll bar and me in it will add 300 or so pounds. I am hoping for mid-low 11's on motor, and mid-low 10's with the progressive wet shot of nitrous. what kind of numbers to you expect for your setup? as I mentioned above, the Dennys driveshaft is strong. they lifetime warranty all their shafts against breakage. arrived in about 2.5 weeks from the day I placed my order. fitment is perfect. plenty of room in the trans tunnel. also, quick question for ya, since my biggest dilemma about this new engine setup is finding a set of headers that are mid length with 1 7/8 primaries. What do you use for headers on your 421 ?

IROCZ1989

iTrader: (1)

I have a set of stainless works 1 3/4 long tubes. I had my fab guy change the ends to v band 3 inch collectors. Going to do a 3 inch dual oval pipe exhaust. See I dont know exactly my cars weight. When I weighed it it had a Procharger kit, stock motor.Dont remember if it had the ac or not but was 3860 with me in it. So now no supercharger, aluminum heads, but the dart block is heavier, bigger heavier rotating assembly. Chrome moly roll bar. I think I'm around 34-3500 not me in it.

I have a driveshaft loop welded in. My biggest concern is if the driveshaft breaks how much stuff is it going to take with it. I can probably fit a 3.5 inch diameter anything. Just liked the steel because 3 inch and it's a decent price from dennys. Carbon fiber is expensive.

I think you would be fine with a Stainless works type header. They fit great and their stainless to boot. When you get into the 1 7/8 and bigger you get into custom territory, which is in the thousands. If you have a shop local that can do it on the car it may be a option. Every car is different, cookie cutter headers are usually 1 5/8 or 1 3/4 so you have a bit of leeway in terms of car to car differences and fitment. Its tight now with 3 inch collector and 1 3/4 primaries. I can see it becoming really tight as you go bigger. Stuff would need to be moved around. Brake lines, smaller steering shaft etc. Another thing to consider is exhaust port height in relation to stock. When you get into the bigger motors heads the exhaust ports are higher. So it moves the header up and out that much more. I'm going to call some of these places this week. But as of right now Dennys is the best deal.

Where are you located in US btw?

IROCZman15

iTrader: (25)

cool. thanks for the header/exhaust info dude!. much appreciated

I am in Northern New Jersey. Luckily cars older than 1995 don't need inspection or have to pass any emissions tests.