Second Gear Sound

[Littlestan]

P.S. Never seen a shaft bend or come loose, shaft bearings or needle roller bearings are usually the culprit. The shafts are made of stainless steel about an inch in diamter... bendable? Not unless you've got some serious horsies, like 800.

While I know most manual tranny's share the same operating principal, I assure you the Chevy tranny's that I used to race my 600HP 454 Chevelle do not have 1 inch thick stainless steel shafts in them. Thus, they did bend often (Too often, IMO). Seeing as how these tranny's are of considerably less "beef" than a Chevy one, I assumed the shafts would be more prone to failure.

Cheers,

-=Littlestan=-

[Burn N' Up]

Originally Posted by Littlestan

While I know most manual tranny's share the same operating principal, I assure you the Chevy tranny's that I used to race my 600HP 454 Chevelle do not have 1 inch thick stainless steel shafts in them. Thus, they did bend often (Too often, IMO). Seeing as how these tranny's are of considerably less "beef" than a Chevy one, I assumed the shafts would be more prone to failure.

Cheers,

-=Littlestan=-

Interesting... how do you think the tranny applied the lateral force to bend the rods, i'm not saying it didn't happen but i'm just interested as to how you think the forces were applied, twisting?

Also, I've rebuilt the R154s and I have the spec sheets on them, the thinest part on the entire cluster(counter gear) shaft is 1.0968 inches in diameter, and the thinest part on the Output shaft is 1.4905 located under 3rd gear. Apparently "beefer" hehe.

Edit: Definetly replace the pilot bearing and if you havn't before or recently replace the throw out, its just worth it. Basically whatever Russ said do it. Don't forget to order the washers and snap rings from a dealer so you'll have them when you need them to reassemble the throwout arm.

[Isphius]

Originally Posted by Littlestan

While I know most manual tranny's share the same operating principal, I assure you the Chevy tranny's that I used to race my 600HP 454 Chevelle do not have 1 inch thick stainless steel shafts in them. Thus, they did bend often (Too often, IMO). Seeing as how these tranny's are of considerably less "beef" than a Chevy one, I assumed the shafts would be more prone to failure.

Cheers,

-=Littlestan=-

Theres also not 650 lb ft of torque in front of them lol. dam i want a big block now I have a 350hp monte carlo that i take to englishtown every once in a while lol. its pretty fast. my transmission is aslo going...its an auto thou. goodluck with the trans. Oh that reminds me. if anyone has a used trans to rebuild lemme know. mine is getting real rough, it wont even go into 2nd unless i double clutch it or let it ride on the synchro for a few seconds. 3rd is pretty rough too.

[Littlestan]

Interesting... how do you think the tranny applied the lateral force to bend the rods, i'm not saying it didn't happen but i'm just interested as to how you think the forces were applied, twisting?

Once I opened up the wrecked can and seen the damage done, it was hard to tell just HOW the forces were applied.

The gears of the tranny are mounted on the shafts, this everyone knows. What I was suggesting happened is that the bearings the shafts are mounted to failed in some form (wear and tear, burned up, etc.) and caused too much free play to operate correctly resulting in complete failure. HOW the shafts were bent, I have no idea. Total carnage...

Holy hell, those are some pretty beefy shafts. No bending those bad boys.

Later,

-=Littlestan=-

[dcrusupra]

Hey, ummm, im scratching my head over this one. The second gear does not make noise anymore. It seems to have switched to the first gear. Anyone as confused as i am?