|
Post by mtshocker25 on Sept 12, 2011 22:43:40 GMT -5
my 78 newport has a factory 9 1/4 sure grip in it... Still not that great of rear I've snapped of a few and will never run one again.as for a full spool love it never broke an axle reliable. And if you do some shopping you can put a 8 3/4 set for around 500.00 don't have green berrings in mine used factor wrapped center spacer with some tape to fit it tight in center of spool and works fine
|
|
n8
Feature Winner
Posts: 1,147
|
Post by n8 on Sept 13, 2011 20:38:49 GMT -5
When replacing bent axles, do those of you that run C body 8 3/4 rear ends buy used or go aftermarket for the replacements? Any issues with aftermarket axles aside from cost? I managed to bend both axles in my last derby and am looking for replacements. Thanks.
|
|
2old4this
Heat Winner
We may not have all the answers but, we're big enough to be questionable.
Posts: 267
|
Post by 2old4this on Sept 14, 2011 18:49:39 GMT -5
I was careful not to call the sure grip the other name. I see that dm440c prefers a welded open diff. I was wondering if there is a weak link in the clutch sure grip which would lead him to that preference? If you have ever priced out the cost of a center section with a sure grip in it already, or just the sure grip unit itself, you would have your answer. Any sure grip unit I have found has been above the cost of a spool, or in some cases, more than the cost of better gears and a spool. He may have another reason but my guess is cost and simplicity. Thanks all great info and all things I did not know.
|
|
dm440c
Feature Winner
derby drivers against drama- there's no crying in demo derby!
Posts: 2,824
|
Post by dm440c on Sept 15, 2011 12:32:18 GMT -5
I was careful not to call the sure grip the other name. I see that dm440c prefers a welded open diff. I was wondering if there is a weak link in the clutch sure grip which would lead him to that preference? If you have ever priced out the cost of a center section with a sure grip in it already, or just the sure grip unit itself, you would have your answer. Any sure grip unit I have found has been above the cost of a spool, or in some cases, more than the cost of better gears and a spool. He may have another reason but my guess is cost and simplicity. right on target, and that's my reason for most of the things I do. Bang for the buck is my deal. To directly answer the question, I see no specific durability issues with a clutch type Sure Grip. I've seen them burn up in the derby from serious abuse but they can be rebuilt. They just cost so darn much and welded diffs are so reliable (for me at least) that it becomes an easy decision to make. Cone type is much harder to recover when wore out, but I like the way they work on street cars.
|
|
nevadapitbull
Future Icon
i can't keep ALL the cool old cars!
Posts: 139
|
Post by nevadapitbull on Sept 15, 2011 22:38:11 GMT -5
i used to have bent axels when i ran no rear brakes and it felt like more power without the drums on but no problems with drums on but moser makes a fine set of burley axels
|
|
brad80
Heat Winner
I'll never look at a light socket the same
Posts: 264
|
Post by brad80 on Sept 16, 2011 15:12:11 GMT -5
Anyone know where I can get housing lengths and what car itcame out of. I might be dealing with a bent housing and my axles are in great shape. My housing measures 58 3/4 outside to outside on the axle mounting flanges. I have to beat the axles to get them in.
|
|
|
Post by derby111 on Sept 25, 2011 13:10:55 GMT -5
can someone tell me what kind of cars were 8 3/4 rearends and 489 case?
|
|
swervin
Feature Winner
The more I drink the smarter I get
Posts: 1,290
|
Post by swervin on Sept 25, 2011 20:31:53 GMT -5
can someone tell me what kind of cars were 8 3/4 rearends and 489 case? So far I've found them under 69 Polara and Nyer, 71 Nyer and 71 to 73 imps. The ones under the imps are 5 on 5 bolt pattern. The others are 5 on 4.5.
|
|
|
Post by derby111 on Sept 25, 2011 23:11:39 GMT -5
Thanks swervin
|
|
dm440c
Feature Winner
derby drivers against drama- there's no crying in demo derby!
Posts: 2,824
|
Post by dm440c on Sept 26, 2011 10:50:04 GMT -5
can someone tell me what kind of cars were 8 3/4 rearends and 489 case? first year for 489 was 1969 the 489 was used for heavier duty applications than the 741 case, so typically found in big heavy cars, paired with the bigger engines, high performance such as Road Runner, etc.
|
|
|
Post by 922yorker on Sept 26, 2011 22:53:38 GMT -5
|
|
Vito324
Feature Winner
For badass roof signs, Check out BlackFlag Designs on Facebook!
Posts: 2,189
|
Post by Vito324 on Oct 12, 2011 10:36:54 GMT -5
which 8 3/4 would fit best in a 80's ford? I'm getting one from a 68 imp. Would that fit?
|
|
swervin
Feature Winner
The more I drink the smarter I get
Posts: 1,290
|
Post by swervin on Oct 12, 2011 13:01:23 GMT -5
They will go under just have to get some 9 inch ears from AFAB or cutter is his screen name and make a bracket that bolts to factory leaf spring perches.
|
|
Vito324
Feature Winner
For badass roof signs, Check out BlackFlag Designs on Facebook!
Posts: 2,189
|
Post by Vito324 on Oct 12, 2011 15:08:43 GMT -5
Awesome, Thanks swervin!
|
|
|
Post by XtremeMopar#307 on Oct 12, 2011 18:40:22 GMT -5
wow, thanks, was just coming on to ask that same question
|
|