Big Red getting stiff

KStromberg

KStromberg

Vortech kicked in yo
Just went on another shopping spree tonight and bought the following driveline items for Big Red along with some other random stuff:

Steeda rear diff brace
Solid diff mounts(front)
Solid engine mounts
Solid trans mount
Solid trans crossmember mounts

Can anyone suggest anything else? I am still on factory airride with Koni sport adjustables out back. The car cut low to mid 1.7s last year. I'm hoping to get deep into the 1.6s

Questions:

1)The rear diff mount that attaches to the cover..... do I have to replace that entire mount or can I just buy the bushing that goes inside of it?

2)Is there any other practical options for the rear knuckle bushings that I can use to help plant this thing firmly other than Delrin?

3)I have seen a few braces at SCP that are intriguing to me. The first is a front subframe lower engine cradle brace that attaches up front that goes under the firewall and then a rear pinion brace and rear torsional load brace. Are any of these worth investing in?
 
mlschultz

mlschultz

Boost King
Here's a photo of what I did to The Mark. Raxle SC T-Bird half shafts, SCP pinion brace, and diff cover brace. Has held together for 10 years now with no complaints.



 
driller

driller

El Presidente
KStromberg said:
1)The rear diff mount that attaches to the cover..... do I have to replace that entire mount or can I just buy the bushing that goes inside of it?
Click to expand...
You can buy a heavy duty mount or drill sideways through the rear mount and install a through bolt like I did and achieve the same purpose.

KStromberg said:
2)Is there any other practical options for the rear knuckle bushings that I can use to help plant this thing firmly other than Delrin?
Click to expand...
Poly bushings are some help but not near as good as Delrin.

KStromberg said:
3)I have seen a few braces at SCP that are intriguing to me. The first is a front subframe lower engine cradle brace that attaches up front that goes under the firewall and then a rear pinion brace and rear torsional load brace. Are any of these worth investing in?
Click to expand...
:thumbsup: Braces, braces and more braces... does Big Red have rear sub-frame braces? I think the sub-frame braces do the most good, followed by the rear pinion brace, rear cover brace, rear torsional load brace and finally the rear shock tower brace. About the only one I don't have is the solid rear firewall 'brace'. :eek:
 
Mad1stGen

Mad1stGen

Booster
I'd suggest UHMW for knuckle and control arm bushings (no need to lubricate) and FRPP rear cover instead of brace.

If you're serious, then cross-member bushing delete:



 
Last edited:
KStromberg

KStromberg

Vortech kicked in yo
driller said:
I searched through my archives but didn't find one. It was a long, long time ago. :confused:

If the car was here, I'd take a pic but it's still at the hot rod shop waiting on bearings that no one seems to have. :rolleyes:

I found this on Google... http://s6.photobucket.com/user/racecougar/media/90%20XR7/underside/reardiffmount.jpg.html
Click to expand...
That's Rod M. from over on TCCOA. I messaged him on Facebook.Thanks for the sweet tip driller!! He said "simple and effective". I personally like the cheap part about it as well. That whole mount is pretty pricey for an upgraded one and I'm already $3000 in on this car over the winter on just parts and I haven't even hit the garage yet, bought tires, or tuning. :eek:

To answer your question from earlier, nope. No subframe bracing and I'm fairly certain that my rear diff mounts are shot and the pumpkin is moving like a rocking chair. LOL
 
Last edited:
C

crash

New member
Hey Kirk, If you are feeling adventurous, you can do what I did on the rear diff cover mount. Cut out the rubber and replace with a polyurethane.
https://drive.google.com/file/d/0BwqolD_0b_1cbmtuaUlXLW9MRk0/view?usp=sharing
Getting rid of the rubber can be a PITA. Then just used Duct tape as a mold for the top part and to keep the middle part centered.
https://drive.google.com/file/d/0BwqolD_0b_1cOXJ3c2R3Nko4SWc/view?usp=sharing
I used 8644K18 from McMaster-Carr. It's a Shore 94A urethane. This thing is SOLID now.
 
You must log in or register to reply here.
Top