what team has the biggest goal differential of all-time before 2020

Before 2019-20, the Montreal Canadiens had the highest goal differential by a team, with a differential of 3,546 goals.

	TEAM	DIFF	GP	W	L	T	OTL	PTS	PTS%	SOW	SOL	G	GA	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Canadiens	3,546	6,659	3,418	2,250	837	155	7,828	.588	64	62	21,355	17,809	19.6	82.2	31.09	10.7	29.08	.906
2	Bruins	1,899	6,500	3,164	2,373	791	172	7,291	.561	64	73	20,653	18,754	19.6	82.3	31.48	10.5	28.93	.897
3	Flyers	1,475	4,046	2,013	1,408	457	168	4,651	.575	45	83	13,250	11,775	19.6	81.6	31.19	10.5	29.12	.900
4	Red Wings	797	6,434	2,953	2,498	815	168	6,889	.535	66	71	19,762	18,965	20.0	81.2	31.31	10.1	28.99	.892
5	Sabres	582	3,820	1,760	1,499	409	152	4,081	.534	75	69	12,063	11,481	18.6	82.5	29.58	10.7	30.08	.900
6	Flames	508	3,664	1,703	1,442	379	140	3,925	.536	45	63	11,903	11,395	19.8	80.9	29.94	10.8	29.25	.894
7	Blues	101	4,046	1,860	1,606	432	148	4,300	.531	70	63	12,363	12,262	19.1	82.2	29.69	10.3	28.90	.895
8	Oilers	100	3,108	1,397	1,293	262	156	3,212	.517	73	67	10,295	10,195	18.6	80.6	29.13	11.4	30.48	.892
9	Islanders	96	3,664	1,621	1,547	347	149	3,738	.510	79	64	11,618	11,522	19.7	80.3	29.24	10.8	30.63	.897
10	Maroons	69	622	271	260	91		633	.509			1,474	1,405
11	Eagles	67	590	269	252	69		607	.514			1,544	1,477
12	Golden Knights	61	164	94	56		14	202	.616	7	5	514	453	19.1	81.2	33.54	9.3	30.00	.908
13	Predators	23	1,606	786	607	60	153	1,785	.556	66	67	4,293	4,270	16.4	82.7	28.87	9.3	29.77	.911
14	Wild	8	1,442	689	556	55	142	1,575	.546	68	66	3,697	3,689	17.0	83.8	27.57	9.3	29.39	.913
15	Avalanche	-1	3,108	1,423	1,294	261	130	3,237	.521	72	40	9,976	9,977	19.7	80.6	29.20	11.0	30.29	.894
16	Wanderers	-18	4	1	5	0		2	.250			17	35
17	Rangers	-24	6,434	2,819	2,665	808	142	6,588	.512	77	64	19,553	19,577	19.8	81.3	30.90	10.2	30.65	.899
18	Ducks	-42	1,984	944	771	107	162	2,157	.544	64	75	5,316	5,358	17.5	82.6	28.86	9.3	30.13	.910
19	Sharks	-42	2,148	1,020	856	121	151	2,312	.538	69	63	6,088	6,130	18.0	82.1	29.63	9.6	28.92	.901
20	Maple Leafs	-81	6,659	2,929	2,790	783	158	6,799	.511	57	72	20,394	20,475	18.8	79.6	30.64	10.2	31.57	.898
21	Capitals	-85	3,508	1,623	1,432	303	150	3,699	.527	61	66	11,024	11,109	19.7	81.3	29.25	10.7	29.56	.893
22	Blackhawks	-124	6,434	2,756	2,706	814	158	6,484	.504	69	64	19,095	19,219	18.6	81.0	30.34	10.3	30.23	.901
23	Tigers	-147	150	51	98	1		103	.343			505	652
24	Senators	-227	2,068	923	878	115	152	2,113	.511	55	73	5,847	6,074	17.1	81.8	29.91	9.5	29.58	.901
25	Quakers	-251	256	71	158	27		169	.330			452	703