70 disc hub to 73 spindle grease seal

[Dodgey]

Hi,

I'm doing a disc conversion for my 70 Challenger. Wanting to keep the 14" rallye wheels so have got my hands on a pair of the 10" discs. The place that I got them only had 73 spindles. Easy enough to get the bearings to suit, but can anyone tell me what the grease seal is that works with this combination?

Just spent an hour with the local bearing supplier and the best they could come up with is getting a machinist to shave a 1/16th of the base of the spindle.

Thanks in advance!

 

[Katfish]

I always check RockAuto for things like this.
73 uses the larger bearing and matching seal, common parts for all disc brake cars all the way up to 80's

 

[Dodgey]

I always check RockAuto for things like this.
73 uses the larger bearing and matching seal, common parts for all disc brake cars all the way up to 80's

Thanks Katfish, I can see either the 70 seal or the 73 seal. Not one that matches the 70 hub dia to the 73 spindle dia ...

 

[Katfish]

70 hub won't fit a 73 spindle, 2 different sizes
You need the later rotor

 

[Dodgey]

70 hub won't fit a 73 spindle, 2 different sizes

You can get bearings to suit -just haven't found a seal that works.

 

[Challenger RTA]

Brake time 1 I wanted to make sure this is right. so I would refer to an expert. And here he is.

 

[Challenger RTA]

Brake time 2

 

[Challenger RTA]

Brake time 3

 

[Challenger RTA]

Brake time 4

Brake upgrade parts list

Photo key number	Description	Qty.	Mopar P/N	Aftermarket brand, P/N	Original Application	Notes, sources
1	Knuckle, L	1	3402629*	Master Power	73-74 E- body, disc- equipped 73-76 A- body	Junkyard, or new repros from Master Power Brakes, Inc
2	Knuckle, R	1	3402628*	Master Power	Same	Same
3	Rotor, HD, 11.75" unicast	2	4126545*	EIS D17038	76-78 B- body police, 79-up R- body police	New suggested
3A	Rotor, HD, 10.87" unicast (opt., see note)	2	3880685	EIS D17032	Diplomat, Volare, etc. police	Opt.- use w/14" wheels
4	Caliper, L	1	3744481*	EIS RC6066	70-72 B- body; 70- 74 E-body	Pin type. See text for slider info.
5	Caliper, R	1	3744480*	EIS RC6065	Same	Same
6	Caliper adapters	2	3880557*	_	76-78 B- body w/pin- type calipers	Junkyard. See text for slider- type info.
6A	Caliper adapters - opt.	2	3580839* 3461977*	-	70-74 E- body; 70- 75 B-body	For 10.87" rotors and 14-in. wheels
7	Adapter bolts	2	6030952	_	Most disc cars	Use new
8	Caliper pins	4 2-pr.	4094147*	EIS H5017	Any Mopar w/pin calipers	Inspect used ones carefully
9	Pads (semi- met., pin- type)	1 set	4049700*	FMSI D39	Any Mopar w/pin calipers	Race compound available - see photos
10	Splash shield, L	1	3880519*	-	Most 73-up Mopars	Omit for HD or race use
11	Splash shield, R	1	3880518*	-	Same	Same
12	Seal, splash shield	2	2944704	-	Same	Same
13	Hyd. hose	2	3766616*	-	70-72 B,E- body	Use new. This number is for pin- type only.
14	Hose seal washer	2	6030084	-	Same	Same
15	Inner wheel bearing	2	5252823	Bower/BCA A-17	All 73-up disc Mopars	Re-use outer bearing, washer, nut, nut lock
16	Seals	2	3580723	National 5121	Same	-

Note: this chart lists components for the target swap: 62-72 B-bodies and 70-74 E-bodies. See text for caliper options and swaps for other vehicles. Mopar part numbers marked with an asterisk (*) are no longer available. The numbers are shown primarily to aid in cross-referencing to aftermarket brands and stock numbers.

The chart does not show parts for the optional slider-type calipers.http://www.allpar.com/disc-main.html

 

[Challenger RTA]

Brake 5
Parts sources

Master Power, Inc.
110 Crosslake Park Rd
Mooresville N.C. 28117
(888) 251-2353
(704) 664-8866
Master Power Brakes

AR Engineering, Ltd.
See website for dealer list:
www.arengineering.com

Firm Feel, Inc.
2730 NW Bliss Road
Vancouver, WA USA 98685
(360) 574-8093
FIRM FEEL, INC. - MOPAR STEERING & SUSPENSION

Wilwood Engineering
4700 Calle Bolero
Camarillo, CA 93012
Phone: (805) 388-1188
Fax: (805) 388-4938
Wilwood Disc Brakes - Specialty OEM, Racing, and Street Performance Bolt-On Brake Kits

Oil Filter Service Co.
615 SE Market St.
Portland, OR 97214
Orders (888) 232-5126
Tech (503) 232-5126
FAX (503) 232-5170

J&P Cycles
13225 Circle Drive
PO Box 138 Anamosa, IA 52205
800.397.4844
Motorcycle Gear & Parts Online | J&P Cycles For Aftermarket Accessories | JPCycles.com

 

[Dodgey]

Brake time 4

Brake upgrade parts list

Photo key number	Description	Qty.	Mopar P/N	Aftermarket brand, P/N	Original Application	Notes, sources
1	Knuckle, L	1	3402629*	Master Power	73-74 E- body, disc- equipped 73-76 A- body	Junkyard, or new repros from Master Power Brakes, Inc
2	Knuckle, R	1	3402628*	Master Power	Same	Same
3	Rotor, HD, 11.75" unicast	2	4126545*	EIS D17038	76-78 B- body police, 79-up R- body police	New suggested
3A	Rotor, HD, 10.87" unicast (opt., see note)	2	3880685	EIS D17032	Diplomat, Volare, etc. police	Opt.- use w/14" wheels
4	Caliper, L	1	3744481*	EIS RC6066	70-72 B- body; 70- 74 E-body	Pin type. See text for slider info.
5	Caliper, R	1	3744480*	EIS RC6065	Same	Same
6	Caliper adapters	2	3880557*	_	76-78 B- body w/pin- type calipers	Junkyard. See text for slider- type info.
6A	Caliper adapters - opt.	2	3580839* 3461977*	-	70-74 E- body; 70- 75 B-body	For 10.87" rotors and 14-in. wheels
7	Adapter bolts	2	6030952	_	Most disc cars	Use new
8	Caliper pins	4 2-pr.	4094147*	EIS H5017	Any Mopar w/pin calipers	Inspect used ones carefully
9	Pads (semi- met., pin- type)	1 set	4049700*	FMSI D39	Any Mopar w/pin calipers	Race compound available - see photos
10	Splash shield, L	1	3880519*	-	Most 73-up Mopars	Omit for HD or race use
11	Splash shield, R	1	3880518*	-	Same	Same
12	Seal, splash shield	2	2944704	-	Same	Same
13	Hyd. hose	2	3766616*	-	70-72 B,E- body	Use new. This number is for pin- type only.
14	Hose seal washer	2	6030084	-	Same	Same
15	Inner wheel bearing	2	5252823	Bower/BCA A-17	All 73-up disc Mopars	Re-use outer bearing, washer, nut, nut lock
16	Seals	2	3580723	National 5121	Same	-

Note: this chart lists components for the target swap: 62-72 B-bodies and 70-74 E-bodies. See text for caliper options and swaps for other vehicles. Mopar part numbers marked with an asterisk (*) are no longer available. The numbers are shown primarily to aid in cross-referencing to aftermarket brands and stock numbers.

The chart does not show parts for the optional slider-type calipers.http://www.allpar.com/disc-main.html

Thank you sir! You are a legend!!

 

[rogue]

amazing posts there... i've got 73 spindles on my 71 challenger, installed before i bought it and unknown, and went through figuring all that out on the fly... wish i had this info back then

 

[bc3j]

The National 5121 seal is $2.39 and Timken is $2.44 at RockAuto.