Just like the title says, what is the weakest link in a 1st gen that is well known to break. I've heard a lot of the pinion yoke on the dana 70 breakin, but what else is there to worry about?

Well I've got my local truck pull schedule and I am thinkin about tryin to get in one of the closer ones. There is a close one on June 12 and 19, and then another close one on July 24. I was thinkin just run in the stock class. I'll probably just go and watch the ones in June and then see if I can get in the one in July since I have some more stuff I want to do to my truck by then.

I know a lot could happen. I'm worried mostly of about my tranny, transfer case, drivelines, pinion yoke with my dana 70, or my headgasket goin. But the way i look at it is all those things are bound to break or go sometime on my truck. I need a new tranny anyways, and i'll have to change my headgasket soon anyways, so if it does go, I won't feel too bad, and it'll make me fix it. And i think with my stock tanny and tc, I think my stock tc will save my truck and my tranny by slippin once it gets too much. What are your thoughts on all this? I'm pretty curious what it'd do and I just want to try it once and see what happens.

 

Your driveline should be pretty safe with a stock auto. Your ladder bars should help the D70 live, but they will not take bouncing under power.

Check your u-joints and straps that hold them to the yokes. I would fashoin up some type of rear suspension stops to help with the bouncing.

It is only going to be a 15-20 secound blast, so the HG and motor in general should be OK. As long as it is in good running order.

Also I would find some weight for the front end. A 1st gen is pretty light compared to the newer trucks. With all the crap we have on the '89 it still only weighs about 6500 w/o weights. The light class around here is usually 7-7500#

 

are you coming to the one in logan ? im gonna try my first pull at that one in late june . just for the thrill. what one is up your way? glad to see you going for it

 

Yeah thats the one i'm talkin about. I was gonna come to that one on June 12th, and then there is one in Idaho falls on the 19th, but that one is through RMPA instead of United. And then the one in Tremonton on July 24th which is also through United. I was lookin through the rules today and if i went in a United pull and ran in the stock class it said I can't run a hood stack but Rocky Mountain will let me.

In the stock class, I don't think they'll let me run front weights or block my rear

 

not knowing anything about this.... except, maybe doing burnouts in vehicles that shouldn't do them.... what about ratchet strapping the rear down to pre-load the rear and keep things from bouncing and what not?

Maybe ratchet-strap and chain the rear into place.... idk just thoughts

 

I've seen guys strap the fronts down, But i'm not sure if they'll let me do that if i run in the stock class. It sucks cuz I can't do as much in the stock class, but yet i don't have the mods or power to keep up in the higher classes. I'm not goin to try and win, I just wanna try it for fun and see what this ol girl does

 

Pulltellbroke, is makeing 300hp with his truck and he pulls in the 7500 and 8500lb classes.

 

Do not strap the front solid it will create a wicked wicked bounce.

I would clamp the rear springs.

You'll break the pinion itself before the yoke.

I usually pull in the Open or mod Diesel classes at the brush pulls and I pull 2.6 at the more organized pulls, I have been thinkin about steppin down to street this year after a little rear suspension work.

 

The thing that goes haywire most often in my truck is located right behind the steering wheel.

 

what do ya mean by clamp the Rear springs PulltilBroke???

I'm gonna try and get a fuel pressure gauge on this thing, along with a different fuel supply setup (not sure what yet) so i don't burn up my pump. And maybe a PS interooler installed before i pull.

 

Smokey, get a walbro 392. From what I have read, they do great and do not seep like the Holley's..

 

Thanks DieselJon, I'll look into it

 

Use some 1/4 or 3/8 flat stock and clamp the leave pack together in about 4 spots, it will keep the pack very stiff and the leaves wont try to separate on the back side of the leaf pack.

 

check your hitch, make sure that is well secured, and take the slack out of the chain first before hammering down, its hard on alot of things when you jerk the sled with slack.

 

Did you just use a big C clamp? or what kind of clamp?


Yeah I was gonna reinforce the hitch, and I'll get disqualified if i jerk the sled, so I'm gonna pull ahead til its tight and then powerbrake and go...